A nurse is reviewing the medication list of an older adult client who takes several medications for different health problems.
The nurse recognizes that polypharmacy in older adults can increase the risk of which of the following?
Adverse drug reactions.
Medication adherence
Drug-drug interactions.
Therapeutic effects.
The Correct Answer is A
The correct answer is A.
Adverse drug reactions.
Polypharmacy, which refers to the effects of taking multiple medications concurrently to manage coexisting health problems, is common among older adults.
It is defined as the regular use of at least five medications.
Polypharmacy can lead to an increase in geriatric syndromes, decrease in functional outcomes, and increased mortality.
One of the major risks of polypharmacy is adverse drug reactions, which are harmful or unintended effects of a medication that occur at normal doses.
Adverse drug reactions can result from drug-drug interactions, drug-disease interactions, drug-age interactions, or inappropriate prescribing.
Adverse drug reactions can cause symptoms such as confusion, dizziness, falls, bleeding, or organ damage.
They can also lead to hospitalizations, increased health care costs, and reduced quality of life.
Choice B is wrong because medication adherence, which is the extent to which patients take medications as prescribed by their health care providers, can actually decrease with polypharmacy.
This is because taking multiple medications can be complex, costly, and burdensome for older adults, especially if they have cognitive impairment or low health literacy.
Medication adherence can also be influenced by patients’ beliefs, preferences, and expectations about their medications.
Choice C is wrong because drug-drug interactions are not a risk of polypharmacy per se, but rather a cause of adverse drug reactions.
Drug-drug interactions occur when two or more drugs affect each other’s pharmacokinetics (absorption, distribution, metabolism, excretion) or pharmacodynamics (mechanism of action, efficacy, toxicity).
Drug-drug interactions can alter the therapeutic effects or safety of a medication.
Choice D is wrong because therapeutic effects are the intended or desired effects of a medication that benefit the patient’s health condition.
Therapeutic effects can decrease with polypharmacy due to drug-drug interactions that reduce the efficacy of a medication.
Therapeutic effects can also be diminished by prescribing cascade, which is a phenomenon where a new medication is prescribed to treat a symptom that is actually an adverse drug reaction of another medication.
Normal ranges for blood pressure are.
≤120/80.
mmHg for normal,.
120−129/80.
mmHg for elevated,.
130−139/80−89.
mmHg for stage 1 hypertension, and.
≥140/90.
mmHg for stage 2 hypertension.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
The correct answer is A.“Do you drive your own car or use public transportation?.” This question is appropriate for the domain ofmode of transportation, which is one of the eight areas of occupational performance assessed by the Lawton Instrumental Activities of Daily Living (IADLs) Scale.The scale evaluates a person’s ability to engage in more complex activities thought necessary for functioning in community settings.
Choice B is wrong because it is not related to the domain of mode of transportation, but rather to the domain ofability to use a telephone.The scale asks about the person’s ability to operate a telephone, dial numbers, and answer calls.
Choice C is wrong because it is not related to the domain of mode of transportation, but rather to the domain ofshopping.The scale asks about the person’s ability to take care of all shopping needs independently, shop for small purchases, or need assistance with shopping.
Choice D is wrong because it is not related to the domain of mode of transportation, but rather to the domain ofmobility.The scale does not assess mobility directly, but it may be inferred from the person’s ability to travel by public transportation or car.
The Lawton IADLs Scale has a summary score that ranges from 0 (low function, dependent) to 8 (high function, independent) for women, and 0 to 5 for men.The score identifies areas of need in regard to care and support.
Correct Answer is ["B","C","E"]
Explanation
The correct answer is B, C, and E.
Phenytoin (Dilantin) is an anticonvulsant medication that is used to control seizures.
It can have several side effects, some of which are serious and require medical attention.
Here are some explanations for each choice:.
A. Avoid drinking grapefruit juice while taking this medication.
This iswrongbecause grapefruit juice does not interact with phenytoin.However, grapefruit juice can affect the levels of other medications, such as statins, calcium channel blockers, and some antidepressants.
B. Brush your teeth gently with a soft-bristled toothbrush.This isrightbecause phenytoin can causegingival hyperplasia, which is an overgrowth of the gums that can lead to bleeding, infection, and difficulty chewing.
To prevent this, patients should practice good oral hygiene, avoid alcohol and tobacco, and see a dentist regularly.
A. Avoid drinking grapefruit juice while taking this medication B.
Brush your teeth gently with a soft-bristled toothbrush C.
Wear a medical alert bracelet or necklace at all times D.
Stop taking this medication if you develop a rash or fever E.
Have your blood levels checked regularly as directed by your provider
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