Author Question: A medical nurse has administered an oral dose of 30 mg nifedipine long-acting to a patient with a ... (Read 32 times)

washai · **on:** Jul 23, 2018

A medical nurse has administered an oral dose of 30 mg nifedipine long-acting to a patient with a diagnosis of angina. What principle should guide the nurse's follow-up assessment after administering this drug?

A) Nifedipine has the potential to induce prodysrhythmic effects.
B) Nifedipine does not affect heart rate, so assessment after administration is not normally necessary.
C) The patient's heart rate will be at its lowest approximately 45 minutes to 1 hour after oral administration of nifedipine.
D) The patient's blood pressure, heart rate, and oxygen saturation level should be assessed 30 minutes after administration of nifedipine.

Question 2

A patient is administered a granulocyte colony-stimulating factor (G-CSF). What is the expected outcome of a G-CSF?

A) Red blood cell count of 3000 mm3
B) Decreased number of infections
C) Decreased fatigue and increased energy
D) White blood cell count of 20,000 mm3

memslove · **Reply #1 on:** Jul 23, 2018

Answer to Question 1

B
Feedback:
Nifedipine inhibits the influx of calcium entering through slow channels, producing vasodilation of the peripheral blood vessels and coronary arteries. However, the drug has a minimal effect on the sinoatrial and atrioventricular nodes. Therefore, it does not affect the heart rate.

Answer to Question 2

B
Feedback:
G-CSFs help to prevent infection by reducing the incidence, severity, and duration of neutropenia associated with several chemotherapy regimens. The administration of a G-CSF should not lower red blood cell count or raise white blood cell count. They assist in the prevention of infection but do not necessarily resolve fatigue.