Medicine MCQs with answers Part 7:

1.A patient presents with decreased vital capacity and total lung volume. What is the most probable diagnosis?
A. Bronchiectasis
B. Sarcoidosis
C. Cystic fibrosis
D. Asthma
Answer : B. Sarcoidosis
A restrictive lung disease causes decrease in vital capacity and total lung volume. Among the options provided, sarcoidosis is the only one causing a restrictive lung disease.

2.A 70 year old man develops pneumonia and septicemia. Patient goes into renal failure and has a BP of 70/50 mm of Hg. Drug that should be used to maintain BP is:
A. Adrenaline
B. Ephedrine
C. Phenylephrine
D. Nor epinephrine
Answer : D. Nor epinephrine
The patient is in septic shock. Dopamine is the recommended drug for maintenance of BP in a case of septic shock. If there is no response, nor epinephrine should be tried. Since nor epinephrine is the only one given among the options, it is the best answer.

3.A patient presents with acute anterior wall infarction and hypotension. Which will be the immediate treatment modality for this patient?
A. Intra aortic balloon counter pulsation
B. Anticoagulation
C. Thrombolytic therapy
D. Angiography and Primary angioplasty
Answer: D. Angiography and Primary angioplasty
Angiography and primary angioplasty is the best modality of treatment in case of ST eleveation MI presenting within 12 hours.

4.A person with mitral regurgitation and atrial fibrillation presents with syncope. On examination the person has a heart rate of 55. What is the most probable cause?
A. Digitalis toxicity
B. Incomplete heart block
C. Stroke
D. Subarachnoid Haemorrhage
Answer : Digitalis toxicity
It is probably a case of digitalis toxicity resulting in complete heart block.

5.CF is associated with Increase in all of the following except:
A. Right atrial mean pressure
B. Serum sodium
C. Serum urea
D. Serum norepinephrine
Answer : Serum sodium
Hyponatremia is seen in CCF

6.The following ECG findings are seen in Hypokalemia:
A. Increased PR interval with ST depression
B. Increased PR interval with peaked T wave
C. Prolonged QT interval with T wave inversion
D. Decreased QT interval with ST depression
Answer : A. Increased PR interval with ST depression
ECG changes in hypokalemia – ST depression, prolonged PR interval, T inversion / flattening, Prominent U waves, Sinoatrial block (rare)

7.The following is the least useful investigation in multiple myeloma:
A. ESR
B. X-Ray
C. Bone scan
D. Bone marrow biopsy
Answer : Bone scan
Osteoblastic activity is suppressed by myeloma cells. (through secretion of cytokines). Hence these site show no increased uptake during bone scan.

8.Which is not true regarding Bernard soulier syndrome?
A. Ristocetin aggregation is normal
B. Aggregation with collagen and ADP is normal
C. Large platelets
D. Thrombocytopenia
Answer: A. Ristocetin aggregation is normal
Bernard Soulier platelets react normally to all stimuli except Ristocetin.

9.The following set of finding is seen in DIC:
A. Increased fibrinogen, increased antithrombin III, increased thrombin – antithrombin III complexes
B. Increased FDP, decreased PT, increased antithrombin III
C. Increased FDP, prolonged PT, increased thrombin-antithrombin complexes
D. Increased FDP, prolonged PT, reduced platelets
Answer : D. Increased FDP, prolonged PT, reduced platelets

10.A patient on aspirin, will show the following finding?
A. Prolonged BT
B. Prolonged PT
C. Prolonged APTT
D. Prolonged CT
Correct answer : Prolonged BT