Archives: FRCA Part 1

FCA1-0395

Over the course of 10 minutes, one litre of 0.9% normal saline is intravenously infused into a normally fit and well 58-year-old male. A catheter is used to measure urine output before and after the infusion. The patient is 70 kg in weight. The following data on urine output is obtained: 50ml/hour Before the infusion, 200 ml/hour 1 hour following infusion, 90 ml/hour 2 hours after the infusion, 60 ml/hr 3 hours after the infusion. Which of the following physiological responses is most likely to account for the sudden increase in urine output after a fluid bolus?

FCA1-0396

A 66-year-old man with a haemorrhagic stroke is admitted to the medical admissions unit. He has been taking warfarin for a long time because of atrial fibrillation. His INR at the time of admission was 9.1. Which of the following treatment options is the most effective in managing his condition?

FCA1-0388

Following a traumatic head injury, you are summoned to the emergency department to transfer a patient to the CT scanner. With a Glasgow coma score of 3, he has already been intubated and ventilated. It is important to ensure that cerebral protection strategies are implemented during the transfer. Which of the following methods is the most effective for reducing venous obstruction?

FCA1-0389

A pre-operative evaluation for a trans-sphenoidal pituitary adenectomy is being performed on a 57-year-old woman. Her vision is causing her problems. A macroadenoma compressing the optic chiasm is visible on MRI. What is the most likely visual field defect to be discovered during an examination?

FCA1-0390

A 55-year-old woman presents for transsphenoidal surgery following a diagnosis of pituitary macroadenoma. Which of the following is the most common visual field defect caused by such lesions?

FCA1-0391

A 46-year-old woman is listed for clipping of a cerebral aneurysm, following a diagnosis of surgical third nerve palsy. Which of the following clinical findings correlate with surgical third nerve palsy?

FCA1-0392

One of the commonest risks associated with a retrobulbar block for ophthalmic surgery is the injury to orbital structures within the tendinous ring. The structure which passes through the superior orbital fissure and tendinous ring to enter the orbit is?

FCA1-0384

Iron is one of the most important micronutrients in the body. Out of the following, which one has the most abundant storage of iron in the body?

FCA1-0385

A patient is evaluated for persistent dysphonia six months after undergoing a subtotal thyroidectomy. Which of the following is the most likely reason for the change in this patient’s voice?

FCA1-0386

Calcium homeostasis is regulated by parathormone (PTH). Which of the following PTH actions is most likely to cause calcium to be released from bone?