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Medical Quizz

Pathophysiology and clinical medicine

1. Image of object focusing in front of retina is typical of:

Myopia (short sightedness, near-sightedness)
Hyperopia (hypermetropia - long-sightedness, far-sightedness)
Presbyopia
Hyperopia, but only when a patient sees the object through the concave lens

2. Elevation of creatin kinase (CK) typically does not accompany

Severe chest pain
Anuria
Chronic alcohol abuse
Epileptic seizures of grand-mal type

3. Ivermectin is:

An antiparasitic drug
Dipeptidyl dipeptidase-IV inhibitor used to treat type 2 diabetes mellitus
A medicine used in the treatment of neonatal diarrhea
Well tolerated immunosupresiv used (a) in the treatment of rheumatoid arthritis and (b) in GVH reaction prevention after transplants

4. With sodium plasma concentration 140 mmol/l calculate how much sodium is filtered into primary urine in 24 hr; take sodium atomic mass rounded to 23 g/mol

32 g
64 g
100 g
0,5 kg

5. Trombophilia means:

high platelet count in blood
abnormality of blood coagulation that increases the risk of thrombosis
inborn hemorrhagic diathesis, that - contrary to hemophilia – is not caused by missing any coagulation factor, but by platelet dysfunction
inborn hemorrhagic diathesis, that - contrary to thrombophobia – is not caused by platelet dysfunction, but by their extremely low count

6. Paradoxical embolism is caused typically

by periodic reversal of blood flow in leg veins
by periodic reversal of blood flow in leg arteries
by mural thrombus lining the wall of an arterial aneurysm (paradoxical embolism to leg veins)
by patent foramen ovale

7. With glomerular filtration rate (GFR) 80 ml/min, 100% filtration and 50% tubular reabsorption of substance X calculate its cearance:

160 ml/min
120 ml/min
80 ml/min
40 ml/min

8. Choose the false answer: Crohn disease

Can affect any segment of gastrointestinal tract from oral cavity to anus, but most frequently it is affecting the terminal ileum or proximal colon
Frequently affects the caecum and anus
Affects most often terminal ileum, caecum and anus
Affects most often the terminal ileum, less frequently the proximal ileum, but never affects the segment distally from transverse colon (here we call it ulcerative colitis)

9. Mechanism of action of diuretic furosemid consists in inhibiton of:

Sodium/Glucose membrane co-transport in proximal tubule
Sodium/potassium/chloride membrane co-transport
Urea reabsorption
Tubular secretion of urea

10. If 20% of cardiac output 5 l/min flows through kidneys, and 20 % of the plasma volume flowing through kidneys is filtered to glomerules, then calculate glomerular filtration rate (take hematokrit value 40 %). Calculated GFR value is:

2 ml/min
20 ml/min
100 ml/min
120 ml/min