Nokea
Psychosis in children is suggested by:
- A. Absence of speech
- B. Intense outbursts of temper
- C. Recurrence of bed-wetting following a period of control
- D. Feelings of depersonalisation
Correct Answer: D
Rationale: Feelings of depersonalisation are a hallmark of psychosis. Absence of speech and temper outbursts are nonspecific, and bed-wetting is not diagnostic.
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Hypertrophic obstructive cardiomyopathy
- A. Causes LV outflow tract obstruction
- B. Occurs after adenoviral infection
- C. Commonly occurs in infancy
- D. Double apical impulse
Correct Answer: A
Rationale: Hypertrophic obstructive cardiomyopathy primarily causes left ventricular outflow tract obstruction.
The typical radiologic configuration in tetralogy of Fallot as seen in the anteroposterior view consists of all the following EXCEPT
- A. normal heart size
- B. some elevation of the cardiac apex
- C. convexity in the region of the main pulmonary artery
- D. right-sided aortic arch
Correct Answer: A
Rationale: Normal heart size is not typical in tetralogy of Fallot.
All of the following are useful indicators regarding the severity of Tetralogy of Fallot
- A. Systemic arterial oxygen saturation
- B. Intensity of outflow murmur
- C. Functional class
- D. Right ventricular outflow gradient by echocardiography
Correct Answer: B
Rationale: The intensity of the outflow murmur is not a reliable indicator of the severity of Tetralogy of Fallot.
Concerning tetanus:
- A. The infection is usually fatal
- B. The muscle spasms are often localized
- C. Immunization confers lifelong immunity
- D. Incubation period is usually weeks
Correct Answer: C
Rationale: Immunization with the tetanus toxoid provides long-lasting immunity, though booster shots are recommended to maintain protection.
Peak expiratory flow rate:
- A. Is a sensitive parameter to assess improvement to therapy in acute bronchial asthma
- B. Measures small airway resistance
- C. Is more related to height rather than age
- D. Less than 50% of normal is an indication for aminophylline therapy in acute asthma
Correct Answer: A
Rationale: Peak expiratory flow rate is a useful tool to monitor response to asthma therapy, particularly in acute exacerbations.