A nurse is preparing to administer digoxin to a 12 year-old child. Prior to administering the dose. the nurse measures the apical heart rate. The nurse should withhold the dose if the child's apical heart rate is less than what rate?
The Correct Answer is ["70"]
The nurse should withhold digoxin if the child's apical heart rate is less than 70 beats per minute because digoxin slows the conduction of electrical signals in the heart and increases the force of cardiac contraction. While this helps to treat conditions like heart failure and arrhythmias, it can also lead to bradycardia. Administering digoxin when the heart rate is already too low increases the risk of adverse effects like severe bradycardia or even cardiac arrest.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Keep the child away from areas with ongoing construction or renovation. – Correct. Lead-based paint is often found in older buildings undergoing renovation.
B. Allow the child to play with toys that may contain lead paint. – Incorrect. This increases the risk of lead exposure.
C. Encourage the child to play outside in areas with visible peeling paint. – Incorrect. Peeling paint is a major source of lead poisoning.
D. Ensure the child has a diet rich in iron and calcium. – Incorrect. While this can reduce lead absorption, it does not prevent exposure.
Correct Answer is D
Explanation
A. "The blood supply to the bone is disrupted." – Incorrect. While fractures can affect blood flow, the main concern with epiphyseal plate fractures is growth impairment.
B. "The younger the child, the longer the healing process will take." – Incorrect. Younger children heal faster than older children or adults due to active bone remodeling.
C. "Bone marrow can be lost through the fracture." – Incorrect. Epiphyseal fractures do not cause bone marrow loss.
D. "Normal bone growth can be affected." – Correct. The epiphyseal plate is responsible for bone growth, and injury to this area can lead to growth disturbances or limb length discrepancies.
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