What is one of the most frequent causes of hypovolemic shock in children?
- A. Sepsis
- B. Blood loss
- C. Anaphylaxis
- D. Congenital heart disease
Correct Answer: B
Rationale: Blood loss is the most frequent cause of hypovolemic shock in children. Sepsis causes septic shock, which is overwhelming sepsis and circulating bacterial toxins. Anaphylactic shock results from extreme allergy or hypersensitivity to a foreign substance. Congenital heart disease contributes to hypervolemia, not hypovolemia.
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Drug combinations recommended to be avoided include all, except
- A. Metronidazole and Warfarin
- B. Furosemide and Gentamicin
- C. Dihydropyridine calcium channel blockers and beta blockers
- D. Omega-3 and Antiplatelets
Correct Answer: D
Rationale: Omega-3 and antiplatelets are not typically a contraindicated combination.
SVT in children differ from physiologic sinus tachycardia by all the following EXCEPT
- A. sudden onset and termination
- B. persistent ventricular rate of >180 bpm
- C. fixed RR interval on ECG
- D. evident change in heart rate with activity
Correct Answer: D
Rationale: Physiologic sinus tachycardia can show changes in heart rate with activity, unlike SVT which has a fixed rate.
A psychiatric referral is warranted in a preschool child with the following:
- A. Night terrors
- B. Separation anxiety
- C. Scared of ghosts
- D. Masturbation
Correct Answer: B
Rationale: Separation anxiety in a preschool child, especially if it is severe and persistent, may warrant a psychiatric referral to assess for anxiety disorders.
Proteins found in muscle fibres include:
- A. Vimentin
- B. Saccharin
- C. Keratin
- D. Desmin
Correct Answer: D
Rationale: Desmin: Desmin is an intermediate filament protein found in muscle fibers, playing a critical role in maintaining structural integrity and organization within muscle cells.
Which congenital cardiac defect(s) cause(s) increased pulmonary blood flow? (Select all that apply.)
- A. Atrial septal defects (ASDs)
- B. Tetralogy of Fallot
- C. Dextroposition of aorta
- D. Patent ductus arteriosus
Correct Answer: D
Rationale: The congenital heart defects that cause increased pulmonary blood flow are ASDs, VSDs, and patent ductus arteriosus.