Causes of a dilated renal pelvis in a foetal scan include:
- A. Normal variant
- B. Vesico-ureteric reflux
- C. Pelvi-ureteric junction obstruction
- D. Multicystic kidney
Correct Answer: A
Rationale: A dilated renal pelvis can be a normal variant in a foetal scan, often resolving spontaneously without intervention.
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Regarding iron deficiency anemia, which of the following is true?
- A. Ferritin levels are elevated
- B. Red blood cell count is usually normal
- C. Hemoglobin is usually decreased
- D. Serum iron levels are elevated
Correct Answer: C
Rationale: In iron deficiency anemia, hemoglobin levels are usually decreased due to insufficient iron for red blood cell production.
Severe hypothermia in newborn is defined as temperature below
- A. 28° C
- B. 30° C
- C. 32° C
- D. 34° C
Correct Answer: A
Rationale: Severe hypothermia in newborns is defined as a core body temperature below 28° C, which is life-threatening and requires immediate intervention.
Which statement by a parent of an infant with congestive heart failure (CHF) who is being sent home on digoxin indicates the need for further education?
- A. I will give the medication at regular 12-hour intervals.
- B. If he vomits, I will not give a make-up dose.
- C. If I miss a dose, I will not give an extra dose.
- D. I will mix the digoxin in some formula to make it taste better.
Correct Answer: D
Rationale: Mixing digoxin with formula can lead to incomplete ingestion and inadequate dosing. Digoxin must be given in its entirety at the prescribed times.
Which finding might delay a cardiac catheterization procedure on a 1-year-old?
- A. 30th percentile for weight
- B. Severe diaper rash
- C. Allergy to soy
- D. Oxygen saturation of 91% on room air
Correct Answer: B
Rationale: A severe diaper rash may indicate potential infection, which is a contraindication for the standard groin approach during catheterization.
All the following are signs of coarctation of the aorta EXCEPT
- A. femoral pulses are weak or absent
- B. bounding pulses of the arms
- C. blood pressure in the legs is lower than that in the arms
- D. precordial impulse and heart sounds are usually normal
Correct Answer: B
Rationale: In coarctation of the aorta, femoral pulses are delayed or absent, not bounding.