A nurse working in radiology administers iodine to a patient who is having a computed tomography (CT) scan.
The nurse working on the oncology unit administers chemotherapy to a patient who has cancer.
At the public health department, a nurse administers a measles mumps rubella vaccine to a 14-month-old child as a routine immunization.
Which branch of pharmacology best describes the actions of the three nurses?
Pharmacodynamics.
Pharmacotherapeutics.
Pharmacoeconomics.
Pharmacokinetics.
The Correct Answer is B
Choice A rationale
Pharmacodynamics is the study of how drugs affect the body, including the mechanisms of action and the relationship between drug concentration and effect. It does not describe the actions of the nurses in this context.
Choice B rationale
Pharmacotherapeutics involves the use of drugs to diagnose, treat, and prevent disease. The actions of the nurses in administering iodine, chemotherapy, and vaccines are examples of pharmacotherapeutics, as they are using drugs for therapeutic purposes.
Choice C rationale
Pharmacoeconomics is the study of the cost and value of drugs and therapies. It does not describe the actions of the nurses in administering medications.
Choice D rationale
Pharmacokinetics is the study of how the body absorbs, distributes, metabolizes, and excretes drugs. It does not describe the actions of the nurses in this context.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A rationale
Platelet count measures the number of platelets in the blood, which are essential for blood clotting. However, it is not specific to monitoring the anticoagulant effects of warfarin.
Choice B rationale
Activated thromboplastin time (APT) measures the intrinsic pathway of coagulation and is typically used to monitor heparin therapy, not warfarin.
Choice C rationale
Red blood count (RBC) measures the number of red blood cells in the blood, which can indicate anemia but is unrelated to the anticoagulant effects of warfarin.
Choice D rationale
Prothrombin time (PT) and international normalized ratio (INR) are specific tests used to monitor the anticoagulant effects of warfarin. PT measures the time it takes for blood to clot, and INR standardizes this measurement to ensure consistency across different laboratories.
Correct Answer is B
Explanation
Choice A rationale
Improved mental status can be a sign of better overall health but is not a specific indicator of improved heart failure status.
Choice B rationale
Using fewer pillows at night indicates reduced orthopnea, a common symptom of heart failure, suggesting that the patient’s heart failure status has improved.
Choice C rationale
Increased skin turgor indicates improved hydration status but is not a specific measure of heart failure improvement.
Choice D rationale
Heart rate regularity is important but does not directly indicate improved heart failure status.
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