51q: central stellar scar on CT scans are seen in ?
a. renal hemangiomas
b. renal oncocytomas
c. wilms tumor
d. papillomas
52q: SSPE ( subacute sclerosing pan encephalitis ) is associated with ?
a. mumps
b. chicken pox
c. herpes
d. measles
53q: hemlich valve is used for drainage of ?
a. pneumothorax
b. hemothorax
c. empyema
d. malignant pleural effusion
54q: a ventilator pressure relief valve stuck in closed position can result in ?
a. barotraumas
b. hypoventilation
c. hypoxia
d. hyperventilation
55q: the best predictor of ovulation is ?
a. estrogen peak
b. follicle stimulating hormone ( FSH ) surge
c. onset of the LH surge
d. preovulatory rise in progesterone
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