Nokea
When administering medications to a 4-month-old infant, which of the following pharmacokinetic principles should be considered? (Select all that apply.)
- A. Infants have a more rapid gastric emptying time.
- B. Infants have immature liver function.
- C. Infants' blood-brain barrier is poorly developed.
- D. Infants have an increased ability to absorb topical medications.
Correct Answer: B
Rationale: When administering medications to a 4-month-old infant, the pharmacokinetic principle to consider is that infants have immature liver function until 1 year of age. This requires medications metabolized by the liver to be administered in smaller dosages. While infants do have a more rapid gastric emptying time, immature liver function is a more critical pharmacokinetic consideration in this context. Additionally, although infants have a poorly developed blood-brain barrier, this relates more to pharmacodynamic effects rather than pharmacokinetic principles. The statement about infants having an increased ability to absorb topical medications is not directly related to pharmacokinetic principles, making choice B the correct answer.
You may also like to solve these questions
What is pharmacodynamics?
- A. The medical reference summarizing standards of drug purity, strength, and directions for synthesis
- B. The drug's actions at receptor sites and the physiological, chemical, and behavioral effects produced by these actions
- C. The maximum response that a drug can produce
- D. Movements of the drugs throughout the body
Correct Answer: B
Rationale: Pharmacodynamics refers to the drug's actions at receptor sites and the physiological, chemical, and behavioral effects produced by these actions. It involves understanding how drugs interact with the body at the molecular level to produce their effects, including mechanisms of action, receptor binding, and downstream physiological responses. Choice A is incorrect because it describes pharmacopeia, which is a reference book containing standards for drugs. Choice C refers to efficacy, which is the maximum effect a drug can produce. Choice D describes pharmacokinetics, which focuses on the movement of drugs within the body.
What nursing interventions should you perform when a patient is on Albuterol? (Select all that apply)
- A. Assess lung sounds, pulse, and blood pressure before administering
- B. Monitor for changes in behavior
- C. Observe for paradoxical bronchospasms
- D. Both A and C
Correct Answer: D
Rationale: The correct nursing interventions to perform when a patient is on Albuterol include assessing the patient's lung sounds, pulse, and blood pressure before administering the medication to monitor for cardiovascular side effects like increased heart rate. Additionally, it is crucial to observe for paradoxical bronchospasms, a rare but serious adverse reaction where the medication causes a worsening of bronchospasm instead of relief. Monitoring for changes in behavior is not directly related to Albuterol administration and is not a standard nursing intervention for patients receiving this medication, making choice B incorrect. Therefore, the correct answer is D as it includes the essential nursing actions for patients on Albuterol.
A client with heart failure is prescribed digoxin. Which statement by the client indicates an adverse effect of the medication?
- A. I can walk a mile a day.
- B. I've had a backache for several days.
- C. I am urinating more frequently.
- D. I feel nauseated and have no appetite.
Correct Answer: D
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
The nurse is caring for a client receiving tamoxifen (Nolvadex) for breast cancer. Which side effect should the nurse monitor for?
- A. Hot flashes
- B. Hair loss
- C. Nausea
- D. Diarrhea
Correct Answer: A
Rationale: Tamoxifen, an estrogen receptor modulator, treats breast cancer but blocks estrogen in some tissues, causing hot flashes , a common menopausal-like effect. Monitoring this ensures client comfort and adherence, as it's frequent and distressing. Hair loss is more chemotherapy-related, not tamoxifen. Nausea and diarrhea occur less often and are less specific. Hot flashes align with tamoxifen's anti-estrogenic action, a key consideration in breast cancer management where long-term use is common. This focus aids in symptom management, distinguishing it from cytotoxic effects, making A the priority side effect to monitor.
Which of the following should the nurse include when providing dietary teaching for the patient receiving warfarin (Coumadin) therapy?
- A. Avoid drinking large amounts of green te
- C. Cranberry juice will provide you with needed nutrients while taking Coumadin.
- D. You must never eat spinach.
Correct Answer: A
Rationale: The nurse should include the instruction to avoid drinking large amounts of green tea when providing dietary teaching for a patient receiving warfarin (Coumadin) therapy because green tea contains vitamin K, which can interfere with the anticoagulant effects of warfarin. Maintaining consistent intake of vitamin K is important to ensure the effectiveness of warfarin therapy. Therefore, it is recommended for patients on warfarin to consume a consistent amount of vitamin K-containing foods and avoid sudden, significant changes in their intake.