Nokea
The vast majority of tumors originating from the heart are benign. Of the following, the MOST common pediatric cardiac tumors are
- A. fibromas
- B. rhabdomyomas
- C. myxomas
- D. hemangiomas
Correct Answer: B
Rationale: Rhabdomyomas are the most common benign cardiac tumors in children.
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A feature of Turner syndrome is:
- A. Short stature
- B. Polydactyly
- C. Congenital heart defects
- D. Mental retardation
Correct Answer: A
Rationale: Short stature is a common feature of Turner syndrome, along with ovarian insufficiency and other physical abnormalities.
A client with pheochromocytoma reports the onset of a severe headache. The nurse observes that the client is very diaphoretic. Which assessment data should the nurse obtain next?
- A. Blood pressure
- B. Blood glucose level
- C. Respiratory rate
- D. Oxygen saturation
Correct Answer: A
Rationale: Pheochromocytoma can lead to hypertension, which may be responsible for the client’s symptoms. Monitoring blood pressure is crucial to assess for potential hypertensive crisis.
Changes that occur in CVS and Respiratory system at birth
- A. Increase in pulmonary Vascular resistance
- B. Increase in Oxygen concentration in Aorta
- C. Increase in the right Ventricular Pressure
- D. Reversal of flow through the ductus arteriosus
Correct Answer: B
Rationale: At birth, oxygen concentration increases in the aorta as lungs begin functioning.
Renin:
- A. Is secreted mainly in extrarenal tissues
- B. Secretion increases on lying supine
- C. Secretion increases with potassium
- D. Converts angiotensin I into angiotensin II
Correct Answer: D
Rationale: Renin is an enzyme produced by the kidneys that converts angiotensin I into angiotensin II which plays a key role in regulating blood pressure and fluid balance. The other options are incorrect because renin is not mainly secreted in extrarenal tissues its secretion does not increase on lying supine or with potassium and it does not regulate osmolality.
Azathioprine:
- A. Is a prodrug
- B. Is teratogenic
- C. Should be avoided in liver disease
- D. Dose should be increased when given with allopurinol
Correct Answer: A
Rationale: Azathioprine is a prodrug. It is not highly teratogenic, can be used in liver disease with caution, and its dose should be reduced with allopurinol.