One of the following can cause unilateral dilated

Question 1 of 5

One of the following can cause unilateral dilated fixed pupil:

A. Narcotics B. Organophosphate C. Anticholinergics D. Tentorial herniation

Correct Answer: D

Rationale: Tentorial herniation leads to compression of the oculomotor nerve, causing a fixed, dilated pupil on the affected side.

Question 2 of 5

Which is true of antihistamines?

A. Classification of antihistamines from type I to type VI is based on increasing antihistamine activity. B. Second-generation antihistamines are distinguished by greater effectiveness than first-generation antihistamines. C. The choice of antihistamines should be based on associated adverse effects and cost. D. Antihistamines are more effective in treating than preventing the action of histamine.

Correct Answer: C

Rationale: The choice of antihistamines should consider side effects and cost, as effectiveness varies among individuals.

Question 3 of 5

The dose of adrenaline IV for cardiac arrest is

A. 10 microgram/kg B. 1000 microgram/kg C. 10 milligram/kg D. 100 microgram/kg

Correct Answer: A

Rationale: The recommended IV dose of adrenaline in pediatric cardiac arrest is 10 mcg/kg (0.01 mg/kg). This helps improve coronary perfusion pressure and return of spontaneous circulation during resuscitation.

Question 4 of 5

Clinical picture of acute congestive heart failure includes all of the following Except:

A. Edema lower limb B. Congested pulsating neck veins C. Firm non-tender liver D. Basal lung crepitations

Correct Answer: C

Rationale: In CHF, the liver is typically tender and pulsatile due to venous congestion. A firm, non-tender liver is more indicative of chronic liver disease rather than acute heart failure.

Question 5 of 5

The following definitions are true EXCEPT

A. A syndrome is defined as a pattern of multiple abnormalities that are related by pathophysiology and result from a common defined etiology B. Dysplasia sequence is a poor organization of cells into tissues or organs C. An association refers to a nonrandom collection of malformations in which there is an unclear relationship among the malformations D. Disruption sequence is a mechanical (uterine) force that alters the structure of intrinsically normal tissue

Correct Answer: D

Rationale: Disruption sequences involve external forces altering normal tissue development, but they are not limited to uterine forces. They can also result from environmental factors or trauma.