Naloxone is effective because of which action?

Increasing the excretion of morphine sulfate by altering serum pH.

Preventing activation of opioid receptors through antagonist actions.

Regulating the sensitivity of opioid receptors by neurochemical alterations.

Countering the effects of morphine sulfate by agonist actions.

Answer and Explanation

The Correct Answer is B

a) Naloxone does not increase the excretion of opioids by altering serum pH; its primary action is at the receptor level.

b) Naloxone is an opioid receptor antagonist, meaning it blocks or prevents the activation of opioid receptors. This is how it counteracts the effects of opioids like morphine.

c) Naloxone does not regulate the sensitivity of opioid receptors by neurochemical alterations. Its action is more direct as an antagonist.

d) Naloxone is not an agonist; it does not produce opioid-like effects. Instead, it competes with opioids for receptor binding and blocks their effects.

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Correct Answer is B

Explanation

a) Tetracycline should not be taken with calcium supplements as calcium can interfere with its absorption, but this is not related to tooth discoloration.

b) Tetracycline can cause yellow or brown discoloration of teeth in children with developing permanent teeth. It is generally contraindicated in children under 8 years of age.

c) Lactose intolerance is not directly related to the risk of tooth discoloration with tetracycline.

d) Tetracycline is generally contraindicated in pregnant clients, especially after the fourth month of gestation, due to potential effects on fetal bone and tooth development.

A. Amlodipine B. Budesonide C. Simvastatin D. Captopril

Correct Answer is D

Explanation

a) Amlodipine is a calcium channel blocker and is less likely to cause angioedema compared to ACE inhibitors like captopril.

b) Budesonide is a corticosteroid and is not typically associated with angioedema.

c) Simvastatin is a statin and is not known to cause angioedema.

d) Captopril is an ACE inhibitor, and angioedema is a known adverse effect. In the presence of localized swelling of the lips and tongue, discontinuation of captopril is likely indicated.

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Naloxone is effective because of which action?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

To prevent yellow or brown discoloration of teeth, tetracycline use should be avoided in which of the following clients?

Correct Answer is B

Explanation

A client arrives in the emergency department with localized swelling of the lips and tongue. The client's medication list includes the following medications. Which of these medications does the nurse anticipate the provider discontinuing?

Correct Answer is D

Explanation

A nurse tells a nursing student that glucocorticoids given for rheumatoid arthritis are nearly identical to substances produced naturally by the body. The student remarks that the drug must be very safe. Which response by the nurse is correct?

The nurse is providing client education for a postmenopausal client; which risks associated with estrogen/progestin therapy should the nurse discuss with the client? (Select all that apply.)

Which of these situations would cause the nurse to hold a dose of morphine?

A client receiving a cephalosporin has passed six distinct-smelling, unformed stools in the first 6 hours of the nurse's shift. What is the nurse's best action?

The nurse is caring for a client who is receiving vancomycin. The nurse notes the client is experiencing flushing, rash, pruritus, and urticaria. The client's heart rate is 120 beats/min, and blood pressure is 92/57 mm Hg. What complication is the client experiencing?

The nurse is caring for a client who has an order for no food or drink by mouth and is receiving intravenous acyclovir. To prevent nephrotoxicity, what is the nurse's action?

A pregnant client asks the nurse if she can take antihistamines for seasonal allergies during her pregnancy. What will the nurse tell the client?

Parents ask the nurse why an over-the-counter cough suppressant with sedative side effects is not recommended for infants. Which response by the nurse is correct?