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Medical Quizz

Pathophysiology and clinical medicine

1. 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

2. Dysphagia is:

A subjective symptom
An objective sign
An objective sign, that, however, a patient has to tell the physician he is suffering from
A subjective symptom, that, howver, does not include the pain (in case of pain odynophagia is the correct)

3. Common signs of Crohn disease do not include:

Diarrhea
Pain
Constipation
p-ANCA positivity with ASCA (antibodies against S. cerevisiae) negativity

4. Fibrinolysis can be potentiated

by activation of fibrinogen conversion to fibrin
blocking the fibrinogen conversion to fibrin
by activation of plasminogen conversion to plasmin
blocking the plasminogen conversion to plasmin

5. Classical Virchow-Rokitanski triad does not include

alteration of blood flow (stasis or turbulence)
abnormality of blood coagulation (hypercoagulability)
medical history of thrombosis or embolism
injury of vessel wall (endothelial injury or dysfunction)

6. Biochemical marker of choice to detect myocardial necrosis is:

troponin
creatinkinase
myoglobin (unless hemolysis is present)
AST (formerly termed GOT) is still the most reliable marker in everyday practice; troponin or myoglobin are used only in research trials

7. 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

8. Sideroblasts

are a sign of disorder of iron incorporation into heme
are pathognomic for sideropenic anemia
are phagocyting cells in spleen (and liver), that take part in recycling of iron back to bone marrow by removing old and altered erythrocytes from the blood flow
jsou nezralé buňky červené řady typické pro hemochromatózu

9. 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

10. 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