Amniotic fluid can be measured with the help of ultrasound to gauge the amniotic fluid index. The normal value ranges between 8-18.
Amniocentesis is a procedure by which amniotic fluid is removed. In rhesus disease, it appears yellow due to raised bilirubin levels.

Shoulder dystocia occurs when the fetal shoulder impacts on the maternal symphysis or sacrum during vaginal delivery. About 10% of babies with shoulder dystocia will suffer a brachial plexus injury, the most common one being Erb-Duchenne palsy. In Erb’s palsy, the upper nerve roots C5 and C6 are damaged due to excessive widening of the angle between the head and the shoulder. This causing temporary paralysis in the affected arm whereby the infant will present with its hand hanging limp by his side, internal rotation of the forearm, plus wrist and finger flexion. This sign is called the ‘waiter’s tip hand’. The palsy usually resolves spontaneously in a large proportion of cases.

It is stage 2B. Stage I: is strictly confined to the cervix; extension to the uterine corpus should be disregarded. The diagnosis of both Stages IA1 and IA2 should be based on microscopic examination of removed tissue, preferably a cone, which must include the entire lesion.
2010 FIGO classification of cervical carcinoma:
Stage IA: Invasive cancer identified only microscopically. Invasion is limited to measured stromal invasion with a maximum depth of 5 mm and no wider than 7 mm.
Stage IA1: Measured invasion of the stroma no greater than 3 mm in depth and no wider than 7 mm diameter.
Stage IA2: Measured invasion of stroma greater than 3 mm but no greater than 5 mm in depth and no wider than 7 mm in diameter.

Stage IB: Clinical lesions confined to the cervix or preclinical lesions greater than Stage IA. All gross lesions even with superficial invasion are Stage IB cancers.
Stage IB1: Clinical lesions no greater than 4 cm in size.
Stage IB2: Clinical lesions greater than 4 cm in size.

Stage II: carcinoma that extends beyond the cervix, but does not extend into the pelvic wall. The carcinoma involves the vagina, but not as far as the lower third.
Stage IIA: No obvious parametrial involvement. Involvement of up to the upper two-thirds of the vagina.
Stage IIB: Obvious parametrial involvement, but not into the pelvic sidewall.

Stage III: carcinoma that has extended into the pelvic sidewall. On rectal examination, there is no cancer-free space between the tumour and the pelvic sidewall. The tumour involves the lower third of the vagina. All cases with hydronephrosis or a non-functioning kidney are Stage III cancers.
Stage IIIA: No extension into the pelvic sidewall but involvement of the lower third of the vagina.
Stage IIIB: Extension into the pelvic sidewall or hydronephrosis or non-functioning kidney.

Stage IV: carcinoma that has extended beyond the true pelvis or has clinically involved the mucosa of the bladder and/or rectum.
Stage IVA: Spread of the tumour into adjacent pelvic organs.
Stage IVB: Spread to distant organs.

Folate has been in the news because of its connection with a type of birth defect called neural tube defect. Studies have shown that women who have infants with neural tube defects have lower intakes of folate and lower blood folate levels than other women. Folate is needed early in pregnancy (before many women know they are pregnant) for normal neural tube development.

Many vegan foods including enriched bread, pasta, and cold cereal; dried beans; green leafy vegetables; and orange juice are good sources of folate. Vegan diets tend to be high in folate, however, to be on the safe side, women capable of becoming pregnant should take a supplement or use fortified foods that provide 400 micrograms of folate daily.

For the above mentioned reasons, all other options are incorrect.

Radiotherapy causes ionisation, primarily of water. This leads to hydroxyl and other free radicals being generated. Free radicals are highly reactive and cause DNA damage to cells via their reactions with them. Free radicals are relatively short lived and eventually form stable compounds. The DNA damage leads to cellular death.

The postpartum period begins soon after the baby’s delivery and usually lasts six to eight weeks and ends when the mother’s body has nearly returned to its pre-pregnant state.

Bloody vaginal discharge (lochia rubra) is heavy for the first 3-4 days, and slowly it becomes watery in consistency and colour changes to pinkish-brown (lochia serosa). After the next 10-12 days, it changes to yellowish-white (lochia alba). Advise women to seek medical attention if heavy vaginal bleeding persists (soaking a pad or more in less than an hour). Women with heavy, persistent postpartum bleeding should be evaluated for complications such as retained placenta, uterine atony, rarely invasive placenta, or coagulation disorders. Endometritis may also occur, presenting as fever with no source, maybe accompanied by uterine tenderness and vaginal discharge. This usually requires intravenous antibiotics. This also should be explained and advise the mother to seek immediate medical attention.

Raised pressure with the pelvis can cause a number of nerve entrapment syndromes. This is entrapment of the lateral cutaneous nerve of the thigh (or lateral femoral cutaneous nerve) also known as Meralgia Paraesthetica. Pregnancy is a risk factor. Shingles can effect this nerve but the rash would usually present itself within 14days.

Breakthrough bleeding, breast tenderness, nausea, bloating, amenorrhea, hypertension, venous thromboembolic disease, increased risk of cervical cancer with decreased risk of ovarian & endometrial cancer, liver disorders like hepatic adenoma and increase in triglycerides due to estrogen component are the common side effects & risks of using combination oral contraceptives.

Patient in the given case mentioned symptoms of primary dysmenorrhea, which is recurrent lower abdominal pain associated with menstruation. Combination estrogen-progestin oral contraceptive pills (OCPs) are considered as the first-line treatment for dysmenorrhea in sexually active patients as OCPs help to reduce pain by thinning the endometrial lining, reducing prostaglandin release and by decreasing uterine contractions.
Nausea, bloating and breast tenderness, are considered as the early side effects of OCPs and will usually improve with continued use. The most common side effect is breakthrough bleeding which is usually associated with lower estrogen doses and other adverse effects caused by the pills include hypertension, increased risk of cervical cancer and venous thromboembolism. Although common perception considers weight gain as a side effect, several studies have shown that no significant weight gain is associated with OCPs, particularly with low-dose formulations.  Considering this, the patient should be reassured that her weight gain is not associated with regular use of OCPs.

In patients who are not sexually active, nonsteroidal anti-inflammatory drugs are considered as the first-line treatment for primary dysmenorrhea. As stopping contraception will increase this Patient’s risk of unintended pregnancy this is not advisable to her.

Switching the patient to a copper intrauterine device (IUD) will decrease systemic side effects, but as its inflammatory reaction in the uterus may increase pain symptoms, copper IUD is not recommended for patients with dysmenorrhea.

As Medroxyprogesterone will increase body fat and decrease lean muscle mass resulting in weight gain is not a good option for this patient. Also medroxyprogesterone due to its risk of significant loss of bone mineral density, is not recommended for adolescents or young women. So it can be used in this age group only if other options are unacceptable.

Presence of estrogen component is the main reason behind the side effects of combination OCPs. Progesterone-only pills have relatively fewer side effects but as they do not inhibit ovulation, they are less effective for treating dysmenorrhea and for contraception.

Combination oral contraceptive pills are the first-line therapy for primary dysmenorrhea in sexually active patients.  Its side effects include breakthrough bleeding, hypertension, and increased risk of venous thromboembolism. Researches proves that weight gain is usually not an adverse effect of OCPs.

Sigmoid colon is part of the hindgut and the hindgut is innervated by the T12-L1 segment of the spinal nerves.

The use of anticoagulants during pregnancy is a complicated issue because warfarin is teratogenic if used in the first trimester, and is linked with fetal intracranial haemorrhage in the third trimester (mainly at doses 5 mg daily). Low molecular weight heparin may be insufficient at preventing thrombosis in women with mechanical prosthetic heart valves, where the risk of valve thrombus is 10 per cent. Anticoagulation is essential in patients with congenital heart disease who have pulmonary hypertension, or artificial valve replacements, and in those in or at risk of atrial fibrillation. The options are either to continue warfarin for the pregnancy, or replace it with heparin between 6 and 12 weeks gestation to avoid the teratogenic risk. Warfarin should be started a week after delivery.

The patient is suffering from Bartholin cyst abscess.
Insertion of an inflatable balloon is a non-surgical procedure that can be performed as an outpatient using a local anaesthetic (LA) injection to numb the area. It involves making a passage from the cyst or abscess through which the pus can drain over 4 weeks. After the LA injection, a small skin cut is made into the cyst or abscess, which allows drainage. A fluid/ pus swab sample may be taken to check for an infection at this stage. A cotton bud is used to break the pockets of abscess/ cyst fluid. A flexible tube (called a Word catheter) with a small, specially designed balloon at its tip is then inserted into the cyst or abscess to create a passage. The balloon is inflated with 3–4mls of sterile fluid to keep the catheter in place. Rarely, a stitch may be used to partly close the cut and hold the balloon in position. It is then left in place for up to 4 weeks; new skin to forms around the passage and the wound heals.

Marsupialization can be done for drainage but is inferior or word catheter because of the technical challenges and complications. Hot compressions and analgesics alone do not suffice in the presence of an abscess. Antibiotics are given after drainage but are not effective alone when there is a large collection of pus.

IUCD is a risk factor for PID and PID has the clinical picture already described. However, fibroids should also be excluded since they may present in the same way.

This patient has experienced polycystic ovarian syndrome-like symptoms.
At least two out of three of the following criteria must be met to diagnose polycystic ovarian syndrome:
1- Hyperandrogenism suggesting an excess of androgens e.g. excess hair growth, acne etc.
2- Menstrual irregularities e.g. dysmenorrhea, oligomenorrhea, and amenorrhea.
3-The ovaries are polycystic if one ovary has 12 or more follicles or if the size of one or both ovaries has risen.

Low FSH, LH, and pituitary hormones are typically associated with hypothalamic dysfunction, however this is not the case here.
Similarly, with premature ovarian failure, FSH/LH levels rise while oestrogen levels decrease.

All of the other choices are incorrect.

This question assesses critical clinical knowledge, as this information must be presented to a patient prior to an amniocentesis to ensure that she has given her informed permission for the treatment.
Amniocentesis is most typically used for genetic counselling in the second trimester of pregnancy. Another option is to do a chorion-villus biopsy (CVB) between 10 and 11 weeks of pregnancy.
The chances of miscarriage after both operations are roughly 1 in 200 for amniocentesis and 1 in 100 for CVB, according to most experts.
The significance of this question is that professionals must be able to weigh the procedure’s danger against the risk of the sickness they are trying to identify.

An underlying disease is only found in 17 % of cases in mild polyhydramnios. In contrast, an underlying disease is detected in 91 % of cases in moderate to severe polyhydramnios. The literature lists the following potential aetiologies: fetal malformations and genetic anomalies (8–45 %), maternal diabetes mellitus (5–26 %), multiple pregnancies (8–10 %), fetal anaemia (1–11 %), other causes, e.g. viral infections, Bartter syndrome, neuromuscular disorders, maternal hypercalcemia. Viral infections which can lead to polyhydramnios include parvovirus B19, rubella, and cytomegalovirus. Other infections, e.g. toxoplasmosis and syphilis, can also cause polyhydramnios.

The history of acutely painful defecation associated with spotting of bright blood is very suggestive of an acute anal fissure. Typically, the patient reports severe pain during a bowel movement, with the pain lasting several minutes to hours afterward. The pain recurs with every bowel movement, and the patient commonly becomes afraid or unwilling to have a bowel movement, leading to a cycle of worsening constipation, harder stools, and more anal pain. Approximately 70% of patients note bright-red blood on the toilet paper or stool. Occasionally, a few drops may fall in the toilet bowl, but significant bleeding does not usually occur with an anal fissure.. After gently spreading the buttocks, a close check of the anal verge can typically confirm the diagnosis.
Rectal inspection is excruciatingly painful and opposed by sphincter spasm; however, if the fissure can be seen, it is not necessary to make the diagnosis at first.

A perianal abscess, which presents as a sore indurated area lateral to the anus, or local trauma linked with anal intercourse or a foreign body, are two more painful anorectal disorders to rule out.

Anal fistulae do not appear in this way, but rather with perianal discharge, and the diagnosis is based on determining the external orifice of the fistula.

Although first-degree haemorrhoids bleed, they do not cause defecation to be unpleasant.

Although carcinoma of the anus or rectum can cause painful defecation, it would be exceptional in this situation.

The Conjoint tendon AKA Inguinal falx reinforces the posterior wall of the inguinal canal. The inguinal and lacunar ligaments are part of the floor The aponeurosis of external oblique is the major component of the anterior wall with fibres of internal oblique reinforcing the lateral part

The amniotic fluid volume increases up to week 35 of gestation and then decreases from then to term.

Nausea, fatigue, breast tenderness, and increased frequency of urination are the most common symptoms of pregnancy, but their presence is not considered definitive as they are nonspecific symptoms which are not consistently found in early pregnancy, also these symptoms can occur even prior to menstruation.

In pregnancy a physical examination will reveal an enlarged uterus which is more boggy and soft, but these findings are not apparent until after 6th week of gestation. In addition, other conditions like adenomyosis, fibroids, or previous pregnancies can also result in an enlarged uterus which is palpable on physical examination.

An abdominal ultrasound will not demonstrate a gestational sac until a gestational age of 5 to 6 weeks, nor will it detect an ectopic pregnancy soon after a missed menstrual period, therefore it is not indicated in this patient.

A Doppler instrument will detect fetal cardiac action usually after 10 weeks of gestation.

A sensitive serum quantitative pregnancy test can detect placental HCG levels by 8 to 9 days post-ovulation and is considered as the most appropriate next step in evaluation of this patient.

Deep venous thrombosis (DVT) during pregnancy is associated with high mortality, morbidity, and costs. Pulmonary embolism (PE), its most feared complication, is the leading cause of maternal death in the developed world. DVT can also result in long-term complications that include post thrombotic syndrome (PTS) adding to its morbidity. Women are up to 5 times more likely to develop DVT when pregnant. The current standard of care for this condition is anticoagulation.

Low molecular weight heparin (LMWH) is the preferred agent for prophylaxis and treatment of DVT during pregnancy. A disadvantage of LMWH over unfractionated heparin (UFH) is its longer half-life, which may be a problem at the time of delivery.