Skeeter syndrome is a large local reaction to stin

Question 1 of 5

Skeeter syndrome is a large local reaction to stinging and biting insects. Of the following, the TRUE statement is

A. IgE-mediated response B. usually occurs in older children C. usually followed by anaphylaxis D. mosquito is the responsible agent

Correct Answer: D

Rationale: Skeeter syndrome is a hypersensitivity reaction to mosquito saliva, presenting as exaggerated local swelling and inflammation, often mistaken for infections like erythema nodosum.

Question 2 of 5

A 12-month-old receives the MMR vaccine and suddenly becomes flushed, tachycardic, tachypneic with weak peripheral pulses & deteriorating consciousness. What is the likely explanation?

A. Cardiogenic shock B. Distributive shock C. Hypovolemic shock D. Immunological shock

Correct Answer: D

Rationale: This is an anaphylactic reaction (a form of immunological shock) that occurs post-vaccination.

Question 3 of 5

A 3-year-old female child with repeated admissions as bleeding tendency in a form of spontaneous ecchymosis and bleeding through the nose and urine. She had another daughter who died because of similar undiagnosed illness. The mother is a staff nurse and she is highly concerned about her child illness. Lab investigations usually show either PT and/or PTT prolongation with normal platelets, which usually normalized after empiric vitamin K administration. The father is a petrol engineer and never seen accompanying the family. Of the following, the MOST helpful investigation is

A. factor VII assay B. factor II assay C. drug level D. von Willebrand factor assay

Correct Answer: A

Rationale: Factor VII deficiency is consistent with the described coagulation profile (PT prolongation, normal platelets, improvement with vitamin K). Factor II assay and von Willebrand factor assay are less relevant here.

Question 4 of 5

Avoidance of triggering agents is crucial in urticaria and angioedema. The MAINSTAY of pharmacologic treatment is

A. second-generation H1 antihistamines B. tricyclic antidepressants C. corticosteroids D. leukotriene receptor blockers

Correct Answer: A

Rationale: Second-generation H1 antihistamines are first-line for chronic urticaria due to their efficacy and fewer side effects.

Question 5 of 5

Of the following, the MOST common factor that increases the likelihood of drowning in adolescents (USA) is:

A. epilepsy B. long QT syndrome C. alcohol D. myocarditis

Correct Answer: C

Rationale: Alcohol consumption significantly increases the risk of drowning in adolescents by impairing judgment and motor coordination, which increases the likelihood of water-related accidents.