Nokea
Normal Heart
- A. Ventricular septal depolarization occurs from Lt ï‚® Rt
- B. During tachycardia diastolic time reduced than systolic time
Correct Answer: B
Rationale: During tachycardia, diastolic time is significantly reduced compared to systolic time.
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Appropriate investigations in the emergency management of a 4-year-old presenting in a coma:
- A. Serum magnesium level
- B. Throat swabs
- C. Arterial blood gas
- D. CT scan
Correct Answer: C
Rationale: Arterial blood gas analysis is crucial in the emergency management of a comatose child to assess oxygenation, ventilation, and acid-base status.
Which is best described as the inability of the heart to pump an adequate amount of blood to the systemic circulation at normal filling pressures?
- A. Pulmonary congestion
- B. Congenital heart defect
- C. Heart failure
- D. Systemic venous congestion
Correct Answer: C
Rationale: The definition of heart failure is the inability of the heart to pump an adequate amount of blood to the systemic circulation at normal filling pressures to meet the body’s metabolic demands. Pulmonary congestion is an excessive accumulation of fluid in the lungs. Congenital heart defect is a malformation of the heart present at birth. Systemic venous congestion is an excessive accumulation of fluid in the systemic vasculature.
Concerning Ebstein-Barr virus (infectious mononucleosis):
- A. Presence of petechiae between the hard and soft palate supports the diagnosis
- B. Typically a rash following administration of penicillin V occurs
- C. Guillain-Barre syndrome is a recognised sequel
- D. Hepatitis is common
Correct Answer: A
Rationale: Petechiae between the hard and soft palate are a classic sign of infectious mononucleosis. A rash following penicillin V is also common, and Guillain-Barre syndrome is a rare complication.
Arrhythmia in Children
- A. Re entry Tachycardia is the commonest
- B. Adenosine decreases the force of cardiac contractility
- C. SVT can cause hydrops foetalis
- D. Valsalva maneuver can restore sinus rhythm
Correct Answer: A
Rationale: Re-entry tachycardia is the most common type of arrhythmia in children.
Recurrent pneumonia is defined in children as having a frequency of episodes more than or equal to
- A. 2 episodes in 6 months
- B. 2 episodes in one year
- C. 3 episodes ever without radiographic clearance
- D. 4 episodes ever with radiographic clearance
Correct Answer: A
Rationale: Recurrent pneumonia in children is defined as having 2 or more episodes in 6 months, indicating a pattern of frequent infections.