NUR 2810U Quiz 1 Questions Solved 100% Correct
The nursing student learns that not all drugs produce effects binding to a receptor. Which
drugs do not act through receptors?
- antacids
- analgesics
- antihistamines
- steroid hormones
antacids
The nurse is preparing to administer a drug with a high therapeutic index. What does this
mean about the drug?
- it is very potent
- it has a low efficacy
- it is probably lethal
- it is relatively safe
it is relatively safe
Why does the nurse administer naloxone to a patient receiving morphine sulfate who has a
respiratory rate of 8 breaths per minute?
- naloxone causes hypersensitivity of the opioid receptors
- naloxone prevents activation of opioid receptors
- naloxone is a partial agonist, requiring a lesser dose to achieve pain relief
- naloxone is an agonist, leading to desensitization of the opioid receptors
naloxone prevents activation of opioid receptors
,Why does the nurse monitor the patient closely when administering a drug with a low
therapeutic index?
- the average lethal dose of the drug is much higher than the therapeutic dose
- the dose required to produce a therapeutic response in 50% of patients is low
- the highest dose needed to produce a therapeutic effect is close to the lethal dose
- there is a low variability of responses to this drug
The highest dose needed to produce a therapeutic effect is close to the lethal dose
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
- atrioventricular heart block
- sinus bradycardia
- reduced cardiac output
increased heart rate
The nurse prepares to give a drug that will prevent receptor activation. Which term would
describe this drug?
- antagonist
- selective
- agonist
- potent
antagonist
, Which statement by the nursing student indicates a need for further instruction about drug
selectivity?
- botulinum toxin is very selective and therefore very safe for administration
- selective drug action is made possible by many types of receptors in the body
- the more selective a drug is, the fewer side effects it will produce
- even though a drug is selective, it can produce nonselective results
botulinum toxin is very selective and therefore very safe for administration
Which drug property is most enhanced by the presence of many different types of
receptors throughout the body?
- potency
- safety
- selectivity
- convenience
selectivity
The nurse understands that the dose-response relationship is graded and should expect to
observe which response?
- once a drug is given, the response is predictably all or nothing
- the response is maintained at a specific level when the therapeutic objective is achieved
- as the dosage increases, the response becomes progressively greater
- a graded response is based on relative potency and maximal efficacy
As the dosage increases, the response becomes progressively greater
The nursing student learns that not all drugs produce effects binding to a receptor. Which
drugs do not act through receptors?
- antacids
- analgesics
- antihistamines
- steroid hormones
antacids
The nurse is preparing to administer a drug with a high therapeutic index. What does this
mean about the drug?
- it is very potent
- it has a low efficacy
- it is probably lethal
- it is relatively safe
it is relatively safe
Why does the nurse administer naloxone to a patient receiving morphine sulfate who has a
respiratory rate of 8 breaths per minute?
- naloxone causes hypersensitivity of the opioid receptors
- naloxone prevents activation of opioid receptors
- naloxone is a partial agonist, requiring a lesser dose to achieve pain relief
- naloxone is an agonist, leading to desensitization of the opioid receptors
naloxone prevents activation of opioid receptors
,Why does the nurse monitor the patient closely when administering a drug with a low
therapeutic index?
- the average lethal dose of the drug is much higher than the therapeutic dose
- the dose required to produce a therapeutic response in 50% of patients is low
- the highest dose needed to produce a therapeutic effect is close to the lethal dose
- there is a low variability of responses to this drug
The highest dose needed to produce a therapeutic effect is close to the lethal dose
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
- atrioventricular heart block
- sinus bradycardia
- reduced cardiac output
increased heart rate
The nurse prepares to give a drug that will prevent receptor activation. Which term would
describe this drug?
- antagonist
- selective
- agonist
- potent
antagonist
, Which statement by the nursing student indicates a need for further instruction about drug
selectivity?
- botulinum toxin is very selective and therefore very safe for administration
- selective drug action is made possible by many types of receptors in the body
- the more selective a drug is, the fewer side effects it will produce
- even though a drug is selective, it can produce nonselective results
botulinum toxin is very selective and therefore very safe for administration
Which drug property is most enhanced by the presence of many different types of
receptors throughout the body?
- potency
- safety
- selectivity
- convenience
selectivity
The nurse understands that the dose-response relationship is graded and should expect to
observe which response?
- once a drug is given, the response is predictably all or nothing
- the response is maintained at a specific level when the therapeutic objective is achieved
- as the dosage increases, the response becomes progressively greater
- a graded response is based on relative potency and maximal efficacy
As the dosage increases, the response becomes progressively greater
