Nokea
All are true about genotype - phenotype correlation in Brugada syndrome, except
- A. SCN5A mutation is associated with short PR interval
- B. LTCC mutation is associated with short QT interval
- C. Yield of genetic testing is low (25%)
- D. No major therapeutic implication of genetic testing
Correct Answer: D
Rationale: There are therapeutic implications of genetic testing in Brugada syndrome.
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A pediatric patient is scheduled for a noninvasive procedure to determine if his heart is structurally normal and to localize a murmur. What diagnostic test does the nurse anticipate?
- A. Barium swallow
- B. Chest x-ray
- C. Electrocardiogram
- D. Echocardiogram
Correct Answer: D
Rationale: Echocardiography is a noninvasive procedure that localizes murmurs and determines if the heart is structurally normal.
While planning care for a client with carpal tunnel syndrome, the nurse identifies a collaborative problem of pain. what is the etiology of this problem?
- A. Irritation of nerve endings
- B. Diminished blood flow
- C. Ischemic tissue changes
- D. Compression of a nerve
Correct Answer: D
Rationale: Carpal tunnel syndrome is caused by compression of the median nerve, leading to pain and other symptoms.
A seizure episode may be mimicked by:
- A. Breath-holding episode
- B. Choreoathetosis
- C. Hysterical reactions
- D. Vasovagal attack
Correct Answer: A
Rationale: Breath-holding episodes in children can mimic seizures due to transient loss of consciousness, often triggered by emotional stress or pain.
Which of the following features favor a diagnosis of restrictive cardiomyopathy over constrictive pericarditis?
- A. Elevated pulmonary artery pressures
- B. Normal BNP levels
- C. Annulus reversus
- D. Ventricular interdependence
Correct Answer: A
Rationale: Restrictive cardiomyopathy is associated with elevated pulmonary artery pressures
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.