A 3-year-old child diagnosed with congestive heart failure is receiving maintenance doses of digoxin and furosemide (Lasix). She is rubbing her eyes when she is looking at the lights in the room and her heart rate is 65 beats per minute. The nurse expects which laboratory finding?
- A. Hypokalemia
- B. Hypomagnesemia
- C. Hypocalcemia
- D. Hypophosphatemia
Correct Answer: A
Rationale: Hypokalemia is a common side effect of furosemide, a diuretic, and can exacerbate digoxin toxicity, which may present with symptoms such as visual disturbances and bradycardia.
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At birth, tunica intima of arterial wall contains all of the following, except
- A. Type IV collagen
- B. Laminin
- C. Endothelial cells
- D. Smooth muscle cells
Correct Answer: D
Rationale: Smooth muscle cells are not typically found in the tunica intima at birth.
BP screenings to detect end-organ damage should be done routinely beginning at what age?
- A. Birth
- B. 3 years
- C. 8 years
- D. 13 years
Correct Answer: B
Rationale: The recommended age to establish a baseline blood pressure in a healthy child is around 3 years.
Polycythaemia:
- A. Is a common cause of jaundice in the newborn
- B. Is significant if haematocrit > 65% on a capillary sample
- C. May cause apnoeas
- D. Exchange transfusion is the treatment of choice in symptomatic cases
Correct Answer: B
Rationale: Polycythaemia is considered significant if the haematocrit exceeds 65% on a capillary sample, as it can lead to hyperviscosity and related complications.
All the following are correct about left ventricular assist device implantation, except
- A. LA pressure is reduced more than RA pressure
- B. A PFO/small ASD is created following LVAD implantation for decompressing LA
- C. Right to left shunting at atrial level can produce systemic desaturation
- D. RV failure is a bad prognostic marker
Correct Answer: B
Rationale: A PFO/small ASD is not typically created following LVAD implantation.
The nurse is teaching a client with glomerulonephritis about self-care. Which dietary recommendations should the nurse encourage the client to follow?
- A. Increase intake of high-fiber foods, such as bran cereal
- B. Restrict protein intake by limiting meats and other high-protein foods
- C. Limit oral fluid intake to 500 ml per day
- D. Increase intake of potassium-rich foods such as bananas or cantaloupe
Correct Answer: B
Rationale: Reducing protein intake helps decrease the workload on the kidneys, which is beneficial in glomerulonephritis.
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