Medical Conditions that Cause Bilateral Oedema: Inferior Vena Cava Obstruction, Hypoalbuminaemia, Deep Venous Thrombosis, Heart Failure, and Hyponatraemia

Bilateral oedema, or swelling in both legs, can be caused by various medical conditions. One of these is inferior vena cava obstruction, which occurs when a renal mass or thrombus compresses the inferior vena cava, preventing venous drainage of the lower limbs. This obstruction can also cause venous engorgement and dilated veins around the umbilicus. Hypoalbuminaemia, on the other hand, causes a generalised oedema that can be seen in the face, upper and lower limbs, and abdomen. Deep venous thrombosis, which presents with painful swelling and erythema in the affected lower limb, can also cause bilateral symptoms if it occurs in the inferior vena cava. Heart failure, which causes bilateral dependent oedema due to fluid overload, is another possible cause of bilateral oedema. Finally, severe hyponatraemia resulting from fluid overload can cause a generalised symmetrical pattern of oedema that affects the upper limbs as well. Treatment for bilateral oedema depends on the underlying cause.

An ultrasound is necessary for adult patients with a hydrocele to rule out any underlying causes, such as a tumor. Although the most common cause of a non-acute hydrocele is unknown, it is crucial to exclude malignancy first. Therefore, providing reassurance or reevaluating the patient at a later time would only be appropriate after a testicular ultrasound has ruled out cancer. Testicular biopsy should not be used to investigate suspected testicular cancer as it may spread the malignancy through seeding along the needle’s track. While a unilateral hydrocele may be an uncommon presentation of a renal carcinoma invading the renal vein, a CTAP would not be the initial investigation in this case. If malignancy is confirmed, CT may be useful in staging the malignancy.

A hydrocele is a condition where fluid accumulates within the tunica vaginalis. There are two types of hydroceles: communicating and non-communicating. Communicating hydroceles occur when the processus vaginalis remains open, allowing peritoneal fluid to drain into the scrotum. This type of hydrocele is common in newborn males and usually resolves within a few months. Non-communicating hydroceles occur when there is excessive fluid production within the tunica vaginalis. Hydroceles can develop secondary to conditions such as epididymo-orchitis, testicular torsion, or testicular tumors.

The main feature of a hydrocele is a soft, non-tender swelling of the hemi-scrotum that is usually located anterior to and below the testicle. The swelling is confined to the scrotum and can be transilluminated with a pen torch. If the hydrocele is large, the testis may be difficult to palpate. Diagnosis can be made clinically, but ultrasound is necessary if there is any doubt about the diagnosis or if the underlying testis cannot be palpated.

Management of hydroceles depends on the severity of the presentation. Infantile hydroceles are generally repaired if they do not resolve spontaneously by the age of 1-2 years. In adults, a conservative approach may be taken, but further investigation, such as an ultrasound, is usually warranted to exclude any underlying cause, such as a tumor.

Understanding Urinary Tract Infections in Children

Urinary tract infections (UTIs) are common in children and can present with a variety of symptoms. In older children, diarrhoea with or without mucus may be a presenting symptom, especially with E. coli infection. While amoxicillin is a commonly used antibiotic, current guidelines recommend trimethoprim or nitrofurantoin for lower UTIs and co-amoxiclav for upper UTIs.

Anatomical abnormalities of the urinary tract increase a child’s susceptibility to UTIs, but they are not present in the majority of cases. Imaging studies are not necessary for infants and children with a first episode of cystitis or a first febrile UTI who respond well to treatment and have a normal voiding pattern. Ultrasonography is the preferred imaging study for children with UTIs.

Escherichia coli is the most common organism isolated in paediatric UTIs, but other organisms such as fungi and viruses can also cause infection. Poor containment of infection is more common in infants younger than 2 months, and UTIs can spread to the kidneys and bloodstream if left untreated.

Understanding the symptoms and treatment options for UTIs in children is important for prompt diagnosis and management.

Understanding Trimethoprim: Mechanism of Action, Adverse Effects, and Use in Pregnancy

Trimethoprim is an antibiotic that is commonly used to treat urinary tract infections. Its mechanism of action involves interfering with DNA synthesis by inhibiting dihydrofolate reductase. This can potentially interact with methotrexate, which also inhibits dihydrofolate reductase. However, the use of trimethoprim can also lead to adverse effects such as myelosuppression and a transient rise in creatinine. The drug can competitively inhibit the tubular secretion of creatinine, resulting in a temporary increase that reverses upon stopping the drug. Additionally, trimethoprim can block the ENaC channel in the distal nephron, causing a hyperkalaemic distal RTA (type 4). It can also inhibit creatinine secretion, often leading to an increase in creatinine by around 40 points, but not necessarily causing AKI.

When it comes to the use of trimethoprim in pregnancy, caution is advised. The British National Formulary (BNF) warns of a teratogenic risk in the first trimester due to its folate antagonist properties. As such, manufacturers advise avoiding the use of trimethoprim during pregnancy. It is important to understand the potential risks and benefits of using this antibiotic and to consult with a healthcare provider before taking any medication.

Distinguishing between Acute Kidney Injury and Chronic Kidney Disease

One of the most effective ways to differentiate between acute kidney injury (AKI) and chronic kidney disease (CKD) is through the use of renal ultrasound. In most cases, patients with CKD will have small kidneys that are bilateral. However, there are some exceptions to this rule, including individuals with autosomal dominant polycystic kidney disease, diabetic nephropathy in its early stages, amyloidosis, and HIV-associated nephropathy.

In addition to renal ultrasound, there are other features that can suggest CKD rather than AKI. For example, individuals with CKD may experience hypocalcaemia due to a lack of vitamin D. By identifying these distinguishing factors, healthcare professionals can more accurately diagnose and treat patients with kidney disease. Proper diagnosis is crucial, as the treatment and management of AKI and CKD differ significantly.

Understanding Hypokalaemia and its Features

Hypokalaemia is a medical condition characterized by low levels of potassium in the blood. It can lead to various symptoms, including muscle weakness and hypotonia. Patients with hypokalaemia who are also taking diuretics should be monitored closely for digoxin toxicity.

One of the most significant concerns with hypokalaemia is its impact on the heart. ECG features associated with hypokalaemia include U waves, small or absent T waves, prolonged PR interval, and ST depression. These changes can increase the risk of arrhythmias and other cardiac complications.

It is essential to recognize the signs and symptoms of hypokalaemia promptly. Treatment may involve potassium supplements or addressing the underlying cause of the condition. With proper management, patients with hypokalaemia can avoid complications and improve their overall health.

Treatment Options for Stage 4 Renal Cancer with Metastases

Loin pain, haematuria, and a palpable abdominal mass are the classic symptoms of renal cancer, which is not very common. When the cancer has metastasized to the adrenal gland, it becomes a stage 4 tumor. Targeted molecular therapy is the first-line treatment for stage 4 renal cancer with metastases. Immunomodulatory drugs such as sunitinib, temsirolimus, and nivolumab are commonly used for this purpose.

Other treatment options for renal cancer include cryotherapy, partial nephrectomy, radiofrequency ablation, and radical nephrectomy. Cryotherapy uses liquid nitrogen to freeze cancerous cells, but it is usually only used for early-stage disease and is not first-line here. Partial nephrectomy is reserved for patients with small renal masses, usually stage 1. Radiofrequency ablation can be used for non-surgical candidates with small renal masses without metastasis, usually stage 1 or 2. Radical nephrectomy involves removal of the entire kidney, which is primarily done for stage 2 and 3 renal cell cancers.

When hypertension is poorly controlled despite taking an ACE inhibitor and a calcium channel blocker, adding a thiazide-like diuretic is recommended. In patients with diabetic nephropathy, achieving tight blood pressure control is crucial. Although ACE inhibitors are the most evidence-based treatment, if blood pressure remains high, the NICE guidelines suggest adding a thiazide-based diuretic such as indapamide. It is important to avoid spironolactone and angiotensin II receptor blockers as they may increase the risk of hyperkalemia.

NICE Guidelines for Managing Hypertension

Hypertension, or high blood pressure, is a common condition that can lead to serious health problems if left untreated. The National Institute for Health and Care Excellence (NICE) has published updated guidelines for the management of hypertension in 2019. Some of the key changes include lowering the threshold for treating stage 1 hypertension in patients under 80 years old, allowing the use of angiotensin receptor blockers instead of ACE inhibitors, and recommending the use of a calcium channel blocker or thiazide-like diuretic in addition to an ACE inhibitor or angiotensin receptor blocker.

The guidelines also provide a flow chart for the diagnosis and management of hypertension. Lifestyle advice, such as reducing salt intake, caffeine intake, and alcohol consumption, as well as exercising more and losing weight, should not be forgotten and is frequently tested in exams. Treatment options depend on the patient’s age, ethnicity, and other factors, and may involve a combination of drugs.

NICE recommends treating stage 1 hypertension in patients under 80 years old if they have target organ damage, established cardiovascular disease, renal disease, diabetes, or a 10-year cardiovascular risk equivalent to 10% or greater. For patients with stage 2 hypertension, drug treatment should be offered regardless of age. The guidelines also provide step-by-step treatment options, including adding a third or fourth drug if necessary.

New drugs, such as direct renin inhibitors like Aliskiren, may have a role in patients who are intolerant of more established antihypertensive drugs. However, trials have only investigated the fall in blood pressure and no mortality data is available yet. Patients who fail to respond to step 4 measures should be referred to a specialist. The guidelines also provide blood pressure targets for different age groups.

Bladder cancer is a prevalent type of urologic cancer that has a high recurrence rate. The most common type is transitional cell carcinoma, which is associated with environmental exposure, particularly smoking and certain occupations. Symptoms include painless gross hematuria, irritative bladder symptoms, and pelvic pain. Diagnosis is made through cystoscopy, which allows for biopsy and resection of papillary tumors. Treatment for non-muscle-invasive bladder cancer involves transurethral resection of the bladder tumor, followed by intravesical chemotherapy, intravesical BCG vaccine, and repeat resection and/or cystectomy in persistent or recurrent high-risk disease. Muscle-invasive bladder cancer is treated surgically, possibly with neoadjuvant chemotherapy.

Chronic urinary tract infections typically present as dysuria or irritative voiding symptoms and are most commonly caused by infection with the original bacterial isolate in young, otherwise healthy women. Women with recurrent symptomatic UTIs can be treated with continuous or post-coital prophylactic antibiotics.

Interstitial cystitis is an ongoing inflammation of the lower urinary tract that is not caused by pathogenic organisms. It affects mainly women over the age of 40 and presents as severe lower abdominal pain and polyuria. It is generally a diagnosis of exclusion.

Analgesic nephropathy is characterized by kidney injury caused by excessive use of analgesic medications such as aspirin and other NSAIDs and paracetamol. This leads to renal papillary necrosis and chronic interstitial nephritis. Most healthy kidneys contain enough physiologic reserve to compensate for this NSAID-induced decrease in blood flow.

Acute interstitial nephritis is a type of hypersensitivity nephropathy that is often drug-associated. Patients present with an abrupt onset of renal dysfunction, fever, and occasionally a rash.

Hyponatraemia and hypokalaemia are caused by bendroflumethiazide, while spironolactone is linked to hyperkalaemia. Smoking would only be significant if the patient had lung cancer that resulted in syndrome of inappropriate ADH secretion, but there is no evidence of this in the given scenario.

Thiazide diuretics are medications that work by blocking the thiazide-sensitive Na+-Cl− symporter, which inhibits sodium reabsorption at the beginning of the distal convoluted tubule (DCT). This results in the loss of potassium as more sodium reaches the collecting ducts. While loop diuretics are better for reducing overload, thiazide diuretics have a role in the treatment of mild heart failure. Bendroflumethiazide was commonly used for managing hypertension, but recent NICE guidelines recommend other thiazide-like diuretics such as indapamide and chlortalidone.

Like any medication, thiazide diuretics have potential adverse effects. Common side effects include dehydration, postural hypotension, and electrolyte imbalances such as hyponatraemia, hypokalaemia, and hypercalcaemia. Gout, impaired glucose tolerance, and impotence are also possible. Rare adverse effects include thrombocytopaenia, agranulocytosis, photosensitivity rash, and pancreatitis.

To manage hypertension, current NICE guidelines recommend using thiazide-like diuretics such as indapamide or chlortalidone as first-line treatment. If blood pressure is not adequately controlled, a calcium channel blocker or ACE inhibitor can be added. If blood pressure remains high, a thiazide-like diuretic can be combined with a calcium channel blocker or ACE inhibitor. In some cases, a beta-blocker or aldosterone antagonist may also be added. Regular monitoring and adjustment of medication is necessary to ensure optimal blood pressure control.

Types of Kidney Tumours and Their Characteristics

Kidney tumours can present with symptoms such as haematuria, loin pain, fatigue, and weight loss. These symptoms should be considered as red flags for urgent referral for potential renal cancer. Renal cell carcinomas are the most common type of kidney tumours in adults, accounting for 80% of renal cancers. They are divided into clear cell (most common), papillary, chromophobe, and collecting duct carcinomas. Sarcomatoid renal cancers are rare and have a poorer prognosis compared to other types of renal cancer. Angiomyolipomas are benign kidney tumours commonly seen in patients with tuberous sclerosis. Transitional cell carcinomas account for 5-10% of adult kidney tumours and start in the renal pelvis. They are the most common type of cancer in the ureters, bladder, and urethra. Wilms’ tumour is the most common kidney cancer in children and is not likely to be found in adults.

Understanding the Different Types of Kidney Tumours

The patient is experiencing acute kidney injury, which can be categorized into three causes: pre-renal, renal, and post-renal. Pre-renal causes are due to inadequate renal perfusion, such as dehydration, haemorrhage, heart failure, or sepsis. In this case, the kidneys are still able to concentrate urine and retain sodium, resulting in high urine osmolality and low urine sodium. Renal causes are most commonly caused by acute tubular necrosis, which damages tubular cells due to prolonged ischaemia or toxins. In this scenario, the kidneys are unable to concentrate urine or retain sodium, leading to low urine osmolality and high urine sodium. Acute glomerulonephritis and acute interstitial nephritis are rarer causes of renal injury. Post-renal causes are due to obstruction of the urinary tract, which can be identified through hydronephrosis on renal ultrasound.

Distinguishing between Acute Tubular Necrosis and Prerenal Uraemia in Acute Kidney Injury

Acute kidney injury can be caused by various factors, including prerenal uraemia and acute tubular necrosis. It is important to distinguish between the two in order to provide appropriate treatment. Prerenal uraemia occurs when the kidneys hold on to sodium to preserve volume, leading to decreased blood flow to the kidneys. On the other hand, acute tubular necrosis is caused by damage to the kidney tubules, often due to ischemia or toxins.

To differentiate between the two, several factors can be considered. In prerenal uraemia, urine sodium levels are typically less than 20 mmol/L, while in acute tubular necrosis, they are usually greater than 40 mmol/L. Urine osmolality is also a useful indicator, with levels above 500 mOsm/kg suggesting prerenal uraemia and levels below 350 mOsm/kg suggesting acute tubular necrosis.

Fractional sodium excretion and fractional urea excretion are also important measures. In prerenal uraemia, the fractional sodium excretion is typically less than 1%, while in acute tubular necrosis, it is usually greater than 1%. Similarly, the fractional urea excretion is less than 35% in prerenal uraemia and greater than 35% in acute tubular necrosis.

Other factors that can help distinguish between the two include response to fluid challenge, serum urea:creatinine ratio, urine:plasma osmolality, urine:plasma urea ratio, and specific gravity. By considering these factors, healthcare providers can accurately diagnose and treat acute kidney injury.

For a suspected case of epididymo-orchitis in a high-risk patient for sexually transmitted infections (STI), such as this young businessman returning from Thailand, the recommended empirical treatment is ceftriaxone 500mg intramuscularly single dose, plus oral doxycycline 100mg twice daily for 10-14 days. This is because the likely organisms involved are Chlamydia trachomatis and Neisseria gonorrhoeae. If the clinical scenario suggests gram-negative organisms, as in the case of an older man with low risk of STI, ciprofloxacin 500mg twice daily for 10-14 days can be used as empirical treatment. However, amoxicillin, metronidazole, and clarithromycin are not suitable antibiotics to cover the possible organisms and are not recommended in the guidelines.

Epididymo-orchitis is a condition where the epididymis and/or testes become infected, leading to pain and swelling. It is commonly caused by infections spreading from the genital tract or bladder, with Chlamydia trachomatis and Neisseria gonorrhoeae being the usual culprits in sexually active younger adults, while E. coli is more commonly seen in older adults with a low-risk sexual history. Symptoms include unilateral testicular pain and swelling, with urethral discharge sometimes present. Testicular torsion, which can cause ischaemia of the testicle, is an important differential diagnosis and needs to be excluded urgently, especially in younger patients with severe pain and an acute onset.

Investigations are guided by the patient’s age, with sexually transmitted infections being assessed in younger adults and a mid-stream urine (MSU) being sent for microscopy and culture in older adults with a low-risk sexual history. Management guidelines from the British Association for Sexual Health and HIV (BASHH) recommend ceftriaxone 500mg intramuscularly as a single dose, plus doxycycline 100mg orally twice daily for 10-14 days if the organism causing the infection is unknown. Further investigations are recommended after treatment to rule out any underlying structural abnormalities.

Differential diagnosis of a renal mass in a 68-year-old man

Renal-cell adenocarcinoma, retroperitoneal sarcoma, transitional-cell carcinoma, Wilms’ tumour and urinary tract infection (UTI) are among the possible causes of a renal mass in a 68-year-old man. Renal-cell adenocarcinoma is the most common type of kidney cancer in adults, but it may remain clinically silent for most of its course. Retroperitoneal sarcomas are rare tumours that usually present as an asymptomatic abdominal mass. Transitional-cell carcinoma is a malignant tumour arising from the transitional epithelial cells lining the urinary tract, and it often causes gross haematuria. Wilms’ tumour is a childhood malignancy that is not consistent with the age of the patient. UTIs in men are generally complicated and may cause dysuria, urinary frequency and urgency, but these symptoms are not elicited in this clinical scenario. Diagnosis and management of a renal mass require a thorough evaluation of the patient’s history, physical examination, laboratory tests, imaging studies and biopsy, if indicated. Treatment options depend on the type, stage and location of the tumour, as well as the patient’s overall health and preferences.

Diagnostic Tests for Autosomal Dominant Polycystic Kidney Disease (ADPKD)

Autosomal Dominant Polycystic Kidney Disease (ADPKD) is a genetic disorder that affects the kidneys. There are several diagnostic tests available to detect ADPKD, including ultrasonography, full blood count (FBC) and urea and electrolytes (U&Es), PKD1 and 2 gene test, and urinalysis.

Ultrasonography is the preferred test for ADPKD as it can detect cysts from 1 to 1.5 cm without the use of radiation or contrast material. The sensitivity of ultrasonography for ADPKD1 is 99% for at-risk patients older than 20 years. The diagnostic criteria for ADPKD1 were established by Ravine et al. in 1994 and depend on the number of cysts present in each kidney and the age of the patient.

FBC and U&Es are performed to check for any abnormalities in blood count and electrolyte levels. An increased haematocrit in the FBC may result from increased erythropoietin secretion from cysts.

PKD1 and 2 gene test is recommended for young adults with negative ultrasonographic findings who are being considered as potential kidney donors. Genetic testing by means of DNA linkage analysis has an accuracy of >95% for ADPKD1 and ADPKD2.

Urinalysis and urine culture are also performed to check for any abnormalities in the urine. Microalbuminuria occurs in 35% of patients with ADPKD, but nephrotic-range proteinuria is uncommon.

Referral to a geneticist is not necessary at this stage, as initial tests such as ultrasonography can be requested by the general practitioner (GP) in the community. However, patients with ADPKD may benefit from genetic counselling to provide them with more information about their genetic condition and assistance in understanding any options that may be available. This may be with a genetic counsellor, a clinical geneticist or a specialist genetic nurse.

In conclusion, a combination of these diagnostic tests can help in the early detection and management of ADPKD.

Treatment Options for Benign Prostatic Hypertrophy (BPH)

Benign prostatic hypertrophy (BPH) is a condition characterized by the proliferation of the cellular elements of the prostate, which can lead to chronic bladder outlet obstruction and a range of urinary symptoms. Treatment options for BPH depend on the severity of the symptoms and the size of the prostate.

The first-line drug of choice for men with moderate-to-severe lower urinary tract symptoms (LUTSs) is an α-blocker, such as alfuzosin, doxazosin, tamsulosin or terazosin. For men with larger prostates or higher prostate-specific antigen (PSA) levels, 5α-reductase inhibitors (e.g. finasteride) may also be offered. However, it is important to note that it may take up to 6 months for the patient to see an effect from this medication.

If storage symptoms persist after treatment with an α-blocker alone, anticholinergics such as oxybutynin may be added to the treatment plan. Surgery should only be considered for men with severe voiding symptoms that have not responded to drug therapy. First-line surgical options include transurethral resection of the prostate (TURP), monopolar transurethral vaporisation of the prostate (TUVP), or holmium laser enucleation of the prostate (HoLEP). Open prostatectomy should be reserved for men with very large prostates.

It is important to seek medical attention if conservative management options have failed or are not appropriate, as untreated BPH can lead to serious complications such as urinary retention, renal insufficiency, recurrent urinary tract infections, gross haematuria, and bladder calculi.

Understanding HLA Typing and Graft Failure in Renal Transplants

The human leucocyte antigen (HLA) system, also known as the major histocompatibility complex (MHC), is located on chromosome 6 and plays a crucial role in renal transplants. The HLA system includes class 1 antigens (A, B, and C) and class 2 antigens (DP, DQ, and DR), with DR being the most important for HLA matching in renal transplants. Graft survival rates for cadaveric transplants are 90% at 1 year and 60% at 10 years, while living-donor transplants have a 95% survival rate at 1 year and 70% at 10 years.

Post-operative problems may include acute tubular necrosis of the graft, vascular thrombosis, urine leakage, and urinary tract infections. Hyperacute rejection, which occurs within minutes to hours, is caused by pre-existing antibodies against ABO or HLA antigens and leads to widespread thrombosis of graft vessels, resulting in the need for graft removal. Acute graft failure, which occurs within 6 months, is usually due to mismatched HLA and is picked up by a rising creatinine, pyuria, and proteinuria. Chronic graft failure, which occurs after 6 months, is caused by both antibody and cell-mediated mechanisms and leads to fibrosis of the transplanted kidney, with recurrence of the original renal disease being a common cause.

In summary, understanding the HLA system and its role in renal transplants is crucial for successful outcomes. Monitoring for post-operative problems and early detection of graft failure can help improve long-term survival rates.

The most appropriate treatment for minimal change glomerulonephritis, which is likely the cause of this patient’s facial edema, hypoalbuminemia, and proteinuria, is prednisolone. This medication is a corticosteroid and is considered the mainstay of therapy for this condition. Adrenaline, albumin infusion, and furosemide are not appropriate treatments for this patient’s condition. While albumin infusion may be used as adjunctive therapy, its effects will only be temporary. Adrenaline is used to treat anaphylaxis and would not be effective in treating minimal change disease. Furosemide may be used as adjunctive therapy, but its effects will also be temporary.

Minimal change disease is a condition that typically presents as nephrotic syndrome, with children accounting for 75% of cases and adults accounting for 25%. While most cases are idiopathic, around 10-20% have a known cause, such as certain drugs, Hodgkin’s lymphoma, thymoma, or infectious mononucleosis. The pathophysiology of the disease involves T-cell and cytokine-mediated damage to the glomerular basement membrane, resulting in polyanion loss and reduced electrostatic charge, which increases glomerular permeability to serum albumin. The disease is characterized by nephrotic syndrome, normotension (hypertension is rare), and highly selective proteinuria, with only intermediate-sized proteins such as albumin and transferrin leaking through the glomerulus. Renal biopsy shows normal glomeruli on light microscopy, but electron microscopy reveals fusion of podocytes and effacement of foot processes.

Management of minimal change disease typically involves oral corticosteroids, which are effective in 80% of cases. For steroid-resistant cases, cyclophosphamide is the next step. The prognosis for the disease is generally good, although relapse is common. Approximately one-third of patients have just one episode, one-third have infrequent relapses, and one-third have frequent relapses that stop before adulthood.

Common Causes of Glomerular Disease: Clinical Features and Characteristics

Glomerular diseases are a group of conditions that affect the tiny filters in the kidneys responsible for removing waste and excess fluids from the blood. Here are some of the most common causes of glomerular disease, along with their clinical features and characteristics:

1. IgA Nephropathy: This is the most common cause of glomerulonephritis worldwide. It is characterized by IgA deposition in the glomerular mesangium and can range from asymptomatic haematuria to rapidly progressive glomerulonephritis. It is often associated with persistent microscopic haematuria or recurrent macroscopic haematuria.

2. Henoch-Schönlein Purpura: This is an acute IgA-mediated disorder that involves generalised vasculitis. It affects the small vessels of the skin, gastrointestinal tract, kidneys, joints, and rarely lungs and central nervous system. Haematuria, when present, is usually microscopic.

3. Diabetic Nephropathy: This is a clinical syndrome characterized by persistent albuminuria, progressive decline in the glomerular filtration rate, and elevated arterial blood pressure. Macroscopic haematuria is uncommon and more suggestive of an alternative aetiology.

4. Membranous Glomerulonephritis: This is one of the more common forms of nephrotic syndrome in adults. It causes asymptomatic proteinuria, but the major presenting complaint is oedema. Macroscopic haematuria is uncommon and more suggestive of an alternative aetiology.

5. Focal Glomerulosclerosis: This is one of the most common causes of primary glomerular disease in adults. It causes asymptomatic proteinuria or nephrotic syndrome with or without renal insufficiency. The most common clinical presenting feature is nephrotic syndrome, characterized by generalised oedema, massive proteinuria, hypoalbuminaemia, and hyperlipidaemia.

In summary, glomerular diseases can present with a range of clinical features and characteristics. Understanding these features can help clinicians diagnose and manage these conditions effectively.

The recommended first-line treatment for lower UTI in pregnant women who are not at term is a 7-day course of nitrofurantoin. However, nitrofurantoin should be avoided in women who are close to term due to the risk of neonatal haemolysis. It is important to promptly and appropriately treat UTI in pregnancy as it is associated with pre-term delivery and low-birthweight. Amoxicillin and cefalexin are second-line options, but local guidelines may vary. It is important to note that a 3-day course of nitrofurantoin is not recommended according to NICE guidelines.

Urinary tract infections (UTIs) are common in adults and can affect different parts of the urinary tract. The management of UTIs depends on various factors such as the patient’s age, gender, and pregnancy status. For non-pregnant women, local antibiotic guidelines should be followed if available. Trimethoprim or nitrofurantoin for three days are recommended by NICE Clinical Knowledge Summaries. However, if the patient is aged over 65 years or has visible or non-visible haematuria, a urine culture should be sent. Pregnant women with UTIs should be treated with nitrofurantoin, amoxicillin, or cefalexin for seven days. Trimethoprim should be avoided during pregnancy as it is teratogenic in the first trimester. Asymptomatic bacteriuria in pregnant women should also be treated to prevent progression to acute pyelonephritis. Men with UTIs should be offered a seven-day course of trimethoprim or nitrofurantoin unless prostatitis is suspected. A urine culture should be sent before antibiotics are started. Catheterised patients should not be treated for asymptomatic bacteria, but if symptomatic, a seven-day course of antibiotics should be given. Acute pyelonephritis requires hospital admission and treatment with a broad-spectrum cephalosporin or quinolone for 10-14 days. Referral to urology is not routinely required for men who have had one uncomplicated lower UTI.