Free MCQs

Which one of the following is not true about the development of acute rheumatic fever?

Dr. Lawrence — Fri, 13 Jan 2012 06:09:28 +0000

Which one of the following is not true about the development of acute rheumatic fever? A. It develops during the acute phase of a group A beta-hemolytic streptococcal infection of the throat. B. It is not associated with streptococcal infection of sites other than the pharynx. C. It usually occurs during the course of epidemics [...]

An elderly woman consults a physician because she is “feeling so tired all the time”

Dr. Lawrence — Fri, 30 Sep 2011 10:42:03 +0000

An elderly woman consults a physician because she is “feeling so tired all the time”. Intraoffice hematocrit is 35%. Peripheral blood smear shows many macrocytic red cells. On questioning, the woman, whose finances are limited, admits that has been living on a “tea and toast” type diet. She has been drinking a powdered orange juice [...]

A 65-year-old woman is admitted to the hospital for constant, severe abdominal pain that has worsened over the prior week

Dr. Lawrence — Thu, 03 Mar 2011 12:34:01 +0000

A 65-year-old woman is admitted to the hospital for constant, severe abdominal pain that has worsened over the prior week. She has no other associated symptoms, such as nausea or vomiting, but has noticed that her daily urine output has sharply decreased. She has had a constant desire to urinate, but, when she tries, only [...]

Use of thrombolytics by GPs in suspected myocardial infarction:

Dr. Lawrence — Mon, 08 Nov 2010 07:39:29 +0000

The use of thrombolytics by GPs in the management of suspected myocardial infarction is indicated if: A. More than 12 hours have elapsed since the onset of pain B. Clinical suspicion remains despite a normal ECG C. Intramuscular opiates have been given D. ‘The call to needle time’ will exceed 90 minutes The Correct Answer [...]

Treatment of choice for recurrent transient ischemic attacks

Dr. Lawrence — Fri, 29 Oct 2010 13:16:00 +0000

The treatment of choice for recurrent transient ischemic attacks in a patient on aspirin with new-onset atrial fibrillation: a) Anticoagulation b) Carotid endarterectomy c) Clopidogrel d) Corticosteroid treatment e) Carotid stent The correct answer is A. Patient compliance with antiplatelet therapy should be determined. When possible, the cause of the TIA or sroke should be [...]

Hemorrhagic CSF in a young patient with excruciating headache and coma

Dr. Lawrence — Fri, 22 Oct 2010 20:51:16 +0000

A 29-year-old man is brought to the emergency department in a comatose state a few hours after complaining of sudden onset of excruciating headache. Neurologic examination reveals dilated pupils poorly responsive to light. A CT scan of the head without contrast demonstrates hyperdensity within the suprasellar cistern, while MRI is unremarkable. Lumbar puncture shows hemorrhagic [...]

Increased Risk for the Development of Torsades de Pointes

Dr. Lawrence — Fri, 22 Oct 2010 20:39:29 +0000

Which of the following is most commonly associated with an increased risk for the development of torsades de pointes? a) Decreased PR interval b) Decreased QRS duration c) Increased PR interval d) Increased QT interval e) U waves The correct answer is D There is an increased risk for the development of torsades de pointes, [...]

A patient has persistent >2mm ST elevation in V2-6 two hours following a myocardial infarction, with hypertension of 205/115 mmHg

Dr. Lawrence — Mon, 18 Oct 2010 17:34:33 +0000

A patient has persistent >2mm ST elevation in V2-6 two hours following a myocardial infarction, with hypertension of 205/115 mmHg. He has already been given morphine and aspirin. What is the next management of choice? a) IV Nitroglycerine b) Double-bolus r-PA c) IV GTN d) IV streptokinase e) Subcutaneous heparin The correct answer is A A working [...]

Most likely ECG abnormality in a patient with Acute Renal Failure and associated hyperkalemia is:

Dr. Lawrence — Mon, 18 Oct 2010 17:12:54 +0000

A 42-year-old man with acute renal failure is confused. His serum potassium is 8.1 mEq/L . The most likely abnormal ECG finding is: a) T wave inversion b) PR interval of 300ms c) QT interval of 0.4s d) U wave e) Tall tented T waves The correct answer is E The earliest ECG evidence of [...]

What would typically cause the pressure–volume curve of the left ventricle to be shifted to the left?

Dr. Lawrence — Thu, 14 Oct 2010 12:12:37 +0000

What would typically cause the pressure–volume curve of the left ventricle to be shifted to the left? a) Aortic regurgitation b) Mitral stenosis c) Aortic stenosis d) Mitral regurgitation e) Tricuspid stenosis The correct answer is C In severe aortic stenosis , the left ventricle functions at the steep portion of the pressure-volume curve. In [...]