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Question 1
Incorrect
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A 75-year-old bedridden patient presents with a wound under their left heel. They complain of pain in the area and feel that the situation is getting worse. Apart from this, they are in good health and have no fever. On examination, you observe an erythematosus area measuring around 2 cm under the left heel, with partial-thickness skin loss affecting the epidermis. There is no necrotic tissue, discharge, or foul odor.
What is the most suitable course of action for this probable diagnosis?Your Answer: Topical fusidic acid with hydrocortisone
Correct Answer: Topical barrier cream and repositioning
Explanation:Management of Grade II Pressure Ulcers: Topical Barrier Cream and Repositioning
Grade II pressure ulcers with partial-thickness skin loss can be managed with topical barrier creams such as Sudocrem®, Proshield™, and Cavilon™. These creams protect the underlying skin and prevent further damage. Regular repositioning and the use of aids to relieve pressure should also be implemented to improve symptoms.
Debridement may be necessary for more severe pressure ulcers or those not responding to treatment. Compression hosiery is not indicated for pressure ulcers and should only be used after ankle-brachial pressure index testing in cases of venous ulceration.
Oral antibiotics such as flucloxacillin are not necessary unless there is evidence of infection. Topical fusidic acid with hydrocortisone is only indicated for mildly infected eczema or skin rashes and is not appropriate for pressure ulcers. The primary focus for managing grade II pressure ulcers is barrier protection and repositioning.
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This question is part of the following fields:
- Plastics
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Question 2
Correct
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A 25 year old patient presents to the accident and emergency department after being involved in a fight an hour ago. Due to being intoxicated, the patient is unable to provide much history. Upon examination, the patient has significant facial swelling on the lower left side and bruising around the left eye. The patient does not experience tenderness when palpated on either side of the nose. However, when asked to bite down, the patient complains of an unusual sensation in their mouth, and the left side teeth come together before the right side. Additionally, two teeth are missing on the left side. What would be the most appropriate next investigation?
Your Answer: Mandible radiography with (orthopantogram)
Explanation:Imaging for Mandibular Fractures: Options and Considerations
Mandibular fractures are less common now with the use of seat belts in motor vehicles, but they still occur, especially in young males. A standard mandible series, including a PA view, Towne view, and left and right oblique views, along with an orthopantogram (OPG), can provide a full evaluation of the mandible and teeth. If further imaging is needed, a CT of the facial skeleton and mandible may be necessary.
In cases of suspected mandibular fractures, it is important to document the function of the marginal mandibular nerve and sensation over the chin. If teeth are missing, a chest X-ray may be necessary to check for inhaled foreign bodies. Lateral facial radiographs are not typically used for the facial skeleton, and MRI is not the first choice for bony injuries but can be useful for evaluating TMJ pathology.
It is important to consider the potential risks and benefits of each imaging option, especially in terms of ionizing radiation exposure. Chest radiographs and CT scans involve higher doses of radiation and should not be the first choice unless necessary. Overall, a thorough evaluation of mandibular fractures requires careful consideration of the patient’s individual needs and circumstances.
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This question is part of the following fields:
- Plastics
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Question 3
Correct
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You are asked to assess a patient in A+E with a burn. He is a 38 year old man who sustained a contact burn to the palm of his left hand and index, middle and ring fingers from a heated metal object an hour ago.
He is haemodynamically stable, and not in significant pain. He a right handed metalworker and is otherwise fit and well without drug allergies. On examination you find the burnt skin on the palmar aspect is white and leathery in appearance. It does not blanch to pressure and the patient can not feel you touching the skin in that area.
This assessment would be compatible with what depth of burn?Your Answer: Full thickness
Explanation:Assessing Burn Depth: Understanding Superficial, Partial Thickness, and Full Thickness Burns
Assessing the depth of a burn is crucial for medical professionals, particularly plastic surgeons and emergency medicine doctors. Burns can vary in depth and may change depending on initial management. Burns are categorized into three types: superficial, partial thickness (including superficial dermal and deep dermal), and full thickness.
Superficial burns are red, moist, and painful with brisk return on blanching. Superficial dermal burns appear drier and whiter than superficial burns, are painful, and have slow return of blood with blanching. Blisters are usually present. Deep dermal burns are mottled red with reduced sensation and do not blanch. Blisters may be present. Full thickness burns are insensate, with a white and leathery/waxy appearance. They do not bleed when pricked with a pin.
While pinprick bleeding can be used to test the depth of burns, the description provided is sufficient to determine the depth of the burn. It is important for medical professionals to understand the characteristics of each type of burn to provide appropriate treatment.
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This question is part of the following fields:
- Plastics
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Question 4
Correct
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A 7-year-old girl is brought to the Emergency Department after falling off her scooter and hitting her face. She had a brief episode of nosebleed which stopped on its own. However, her mother is worried about her breathing, which has become congested and noisy, and her right nostril is getting more swollen. Upon examination, there is an enlarged and red nasal septum on the right side, and a fluctuating swelling can be felt upon palpation. What is the best course of action for this likely diagnosis?
Your Answer: Refer to Ear, Nose and Throat (ENT) for urgent drainage
Explanation:Management of Septal Haematoma: Urgent Drainage is Key
Septal haematoma is a blood-filled cavity between the nasal cartilage and the perichondrium, commonly caused by nasal trauma and more prevalent in children. The nasal cartilage relies on the perichondrium for nutrients, and any disruption to this process can lead to necrosis of the cartilage. Urgent drainage is crucial to prevent complications such as septal abscess, necrosis, and collapse of the nasal bridge, which can result in septal fibrosis and saddle nose deformity. While oral antibiotics may be given post-drainage to prevent abscess formation, they are not a substitute for drainage. Conservative management with analgesia and nasal packing may be used in conjunction with drainage, but an urgent referral to an Ear, Nose and Throat (ENT) specialist is necessary for proper management. Therefore, urgent drainage is key in the management of septal haematoma.
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This question is part of the following fields:
- Plastics
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Question 5
Correct
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A 75-year-old man is brought to the Emergency Department by ambulance. The patient is accompanied by his daughter. The patient is usually bed-bound due to a history of multiple strokes and he lies on a normal mattress at home. The patient is non-verbal due to expressive aphasia and severe autism. The daughter informs the emergency medicine team that the patient usually has carers four times a day for washing, feeding and repositioning. In the last two days, the daughter has noted that her father has become more irritable and is not eating as much as he usually would. The patient is able to swallow safely and has no drug allergies.
His observations are shown below:
Temperature 37.2 °C
Blood pressure 156/78 mmHg
Heart rate 78 beats per minute
Respiratory rate 15 breaths per minute
Sp(O2) 98% (room air)
Physical examination reveals a sacral pressure ulcer, 3 cm in diameter, that is erythematosus and draining a small amount of thick, white fluid. The wound is approximately 0.5 cm deep and does not extend to the bone. There is no necrotic tissue present. An electrocardiogram (ECG) shows normal sinus rhythm without ischaemic changes and QTc interval of 530 milliseconds. Blood test results are shown below:
Investigation Result Normal value
White cell count 14.9 × 109/l 4–11 × 109/l
C-reactive protein 40 mg/l 0–10 mg/l
Which of the following is the most appropriate antibiotic for this patient’s infected pressure ulcer?Your Answer: Flucloxacillin
Explanation:Choosing the Right Antibiotic for Infected Pressure Ulcers
When treating an infected pressure ulcer, it is important to choose the right antibiotic based on the type of infection and the patient’s medical history. For superficial infections, oral antibiotics such as flucloxacillin are often used as they provide coverage for gram-positive bacteria commonly found on the skin surface. However, culture swabs should be taken to tailor the antibiotic treatment to the specific microbial sensitivities.
It is important to consider the patient’s medical history when choosing an antibiotic. For example, fluoroquinolones like ciprofloxacin should be avoided in patients with a prolonged QT interval as they increase the risk of torsades de pointes. Clarithromycin should also be avoided in these patients as it can also increase the risk of this dangerous heart rhythm. Nitrofurantoin, commonly used for urinary tract infections, may not be the best choice for infected pressure ulcers as it does not provide coverage for gram-positive organisms like Staphylococcus aureus.
Overall, choosing the right antibiotic for infected pressure ulcers requires careful consideration of the type of infection and the patient’s medical history to ensure safe and effective treatment.
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This question is part of the following fields:
- Plastics
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Question 6
Incorrect
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A 25-year-old man arrives in the resuscitation area of the Emergency Department with significant burns to his face, torso, and hands after throwing petrol on a bonfire. According to the rule of nines, he has 31.5% burns. He weighs 95 kg.
What would be the appropriate amount of fluid resuscitation based on the Parkland formula?Your Answer: 18L, with 9L given in the first 8 h followed by 9L over the next 16 h
Correct Answer: 12L, with 6L given in the first 8 h followed by 6L over the next 16 h
Explanation:Understanding Fluid Resuscitation in Major Burns
Fluid resuscitation is a crucial aspect of treating patients with major burns. The goal is to replace fluid losses and maintain tissue perfusion to prevent the spread of tissue damage. The Parkland formula is a guide used to calculate the total fluid requirement in 24 hours, based on the patient’s body weight and the percentage of burn surface area. The formula recommends giving 50% of the total fluid requirement in the first 8 hours and the remaining 50% over the next 16 hours.
However, caution should be exercised to avoid overly aggressive fluid resuscitation, which can worsen tissue oedema and hypoxia. The aim is to achieve a urine output of 0.5-1.0 ml/kg/hour in adults. Children require maintenance fluid in addition to the calculated fluid requirement.
It’s important to note that the Parkland formula is a guide, and the fluid requirement may vary depending on the patient’s condition. The initial shift of fluid from the intravascular compartment to the interstitial tissues can lead to hypotension, and burns to the skin can reduce the body’s ability to regulate fluid losses and temperature. Therefore, careful monitoring and adjustment of fluid resuscitation are necessary to ensure optimal outcomes for patients with major burns.
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This question is part of the following fields:
- Plastics
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Question 7
Incorrect
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A 50-year-old man was saved from a building blaze. Consequently, he sustained burns on his entire back and left leg. What is the percentage of his total body surface area (TBSA) that has been impacted?
Your Answer: 36%
Correct Answer: 45%
Explanation:Calculating Total Body Area Affected by Burns using the Rule of 9s
The rule of 9s is a commonly used method for calculating the total body area affected by burns. According to this rule, the body is divided into different regions, each representing a certain percentage of the total body surface area (TBSA). For instance, the head represents 9% of the TBSA, with 4.5% for the anterior head and 4.5% for the posterior head. The anterior and posterior torso each represent 18% of the TBSA, while each arm and leg represents 9%. The genitalia/perineum represents 1% of the TBSA.
As a rule of thumb, the patient’s palm can be used to estimate 1% of the TBSA for burns not involving whole body areas. For example, if a patient has burns on their right leg (18%), left leg (18%), and right arm (9%), the total body area affected by burns would be 45%.
Other percentages can also be calculated using the rule of 9s. For instance, 30% would indicate burns to both legs only (18% for each leg), while 36% would indicate burns to both legs only (18% for each leg). 40% would be consistent with burns to the right leg (18%), left leg (18%), and right arm (9%). 54% would indicate burns to both arms and both legs (18% for each leg, 9% for each arm).
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This question is part of the following fields:
- Plastics
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Question 8
Incorrect
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What is the definition of healing by secondary intention, which is the final stage of tissue response to injury involving regeneration and repair?
Your Answer: Healing here involves epithelial cells from the dermal edges, hair follicles and sebaceous glands replicated to cover the exposed area
Correct Answer: Wounds close by contraction and epithelialization due to tissue loss
Explanation:Understanding Different Types of Wound Healing
Primary Healing: This type of healing occurs in wounds that are clean and have clear-cut edges that can be closely approximated. The wound is closed with sutures, staples, or adhesive strips, and healing occurs quickly with minimal scarring.
Secondary Healing: This type of healing occurs in wounds that are frequently contaminated or poorly delineated. The skin and tissues are left open for a short period of time before being approximated. Healing occurs by contraction and epithelialization due to tissue loss, and scarring is more significant.
Partial Thickness Healing: This type of healing involves epithelial cells from the dermal edges, hair follicles, and sebaceous glands replicating to cover the exposed area. It occurs in wounds that only affect the top layer of skin and typically heals without scarring.
Delayed Primary Healing: This type of healing occurs in wounds that are contaminated or have a high risk of infection. The wound is left open for a few days to allow for drainage and cleaning before being closed with sutures or staples. Healing occurs by a combination of primary and secondary healing, and scarring may be more significant.
Keloid Scarring: This occurs when excessive scar tissue grows, forming a smooth, hard layer that extends beyond the boundaries of the original wound. Keloid scars can be itchy, painful, and may require medical treatment to reduce their appearance.
Understanding the different types of wound healing can help individuals better care for their wounds and manage scarring.
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This question is part of the following fields:
- Plastics
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Question 9
Correct
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A young adult is admitted after being rescued from a house fire. They have sustained significant burns to both upper limbs, as well as the front of their torso.
Estimate the size of the burn in terms of percentage of body surface area.Your Answer: 36%
Explanation:Understanding the Wallace Rule of Nines for Estimating Burn Size
The Wallace Rule of Nines is a widely used method for estimating the size of a burn. It involves dividing the body into regions, each representing a certain percentage of the total body surface area. According to this rule, each arm represents 9%, each leg represents 18%, the head represents 9%, the front and back of the torso represent 18% each, and the genitals and the area of the patient’s palm represent 1% each.
Once the percentage of burn is estimated using the rule of nines, it can be used in formulae such as the Parkland formula to calculate the amount of fluid replacement required for the patient. The Parkland formula is used to determine the total amount of fluid required in the first 24 hours following a burn.
It is important to note that an accurate assessment of the percentage of body surface area affected by burns is crucial for determining the appropriate treatment and fluid replacement. Any overestimation or underestimation can lead to inadequate or excessive fluid replacement, which can have serious consequences for the patient’s recovery.
In conclusion, understanding the Wallace Rule of Nines is essential for healthcare professionals involved in the management of burn injuries. It provides a quick and reliable method for estimating the size of a burn and determining the appropriate fluid replacement.
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This question is part of the following fields:
- Plastics
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Question 10
Correct
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A 25-year-old university student comes to the Emergency Department following a fireworks injury. She reports experiencing intense pain in her forearm. Upon examination, her left forearm appears pale pink and is extremely sensitive, with visible blisters. You conduct a palpation of the affected area and find no loss of sensation throughout the region.
What is the probable diagnosis?Your Answer: Second-degree, superficial
Explanation:Different Types of Burns and Their Characteristics
Burns can be classified into different types based on their severity and depth of tissue damage. Understanding the characteristics of each type of burn is important for proper management and treatment.
First-degree burn: This type of burn affects only the epidermis and presents with redness, pain, and mild swelling. Blisters are not a feature of this type of burn.
Second-degree, superficial burn: This type of burn affects the epidermis and part of the dermis, resulting in pink-colored skin with painful blisters. Management involves cleansing the wound, leaving the blisters intact, using a non-adherent dressing, and reviewing in 24 hours.
Second-degree, deep burn: This type of burn affects the epidermis and deeper layers of the dermis, resulting in waxy skin with reduced blanching to pressure and reduced sensation. It is frequently less painful than superficial dermal burns.
Third-degree burn: This type of burn affects the epidermis and all of the dermis, resulting in white/brown/black-colored skin without pain or blister formation. The skin will be dry and leathery and will not heal.
Mixed-depth burn: This type of burn involves features of different types of burns and requires individualized management.
Understanding the characteristics of each type of burn is crucial for proper management and treatment.
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This question is part of the following fields:
- Plastics
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