The nurse prepares to give a drug that will prevent receptor activation. Which term would describe this drug?
Antagonist
What is the term for the study of how drugs influence the body?
Pharmacodynamics
Why does the nurse monitor the patient closely after administering a drug with a low therapeutic index?
The highest dose needed to produce a therapeutic effect is close to the lethal dose.
The nurse is caring for a patient who is receiving a drug with a low therapeutic index. Which is the most important nursing intervention for this patient?
Monitor the patient's plasma drug level periodically.
The drug dobutamine acts as an agonist of norepinephrine (NE) receptors. Which effect is the nurse most likely to observe in a patient receiving this medication?
Increased heart rate
The nurse is caring for a patient who is prescribed a drug to block the histamine receptors to prevent excessive gastric secretion. Which category of drugs does this medication belong to?
Antagonist
The nursing student learns that not all drugs produce effects by binding to a receptor. Which drugs do not act through receptors?
Antacids
The nurse is administering isoproterenol, a beta1 and beta2 agonist. The nurse understands activation of these two receptors will result in which expected drug effects? Select all that apply.
Bronchial dilation
Increased heart rate
Increased force of heart contractio
Which phrase best describes activation of a receptor?
An effect that mimics the natural neurotransmitter for that receptor
A nurse is teaching the staff about the effects of drugs on receptor activity. The nurse is using the image in the teaching session. Which concept will the nurse teach about for 5a in the image?
B. Reuptake of the transmitter
A nurse is teaching a group of coworkers about the effects of drugs on receptors. Which comment by a coworker would need correction?
"Agonist drugs decrease receptor activation."
What is the advantage of patients having multiple types of receptors to regulate bodily functions?
Higher degree of selectivity
The nurse is reviewing medications that act as beta1 receptors. Which of these are responses to beta1 receptor activation? Select all that apply.