The nurse closely monitors an older adult for signs of medication toxicity. Which physiological change is the reason for the nurse’s action?
Renal dysfunction
Pancreatic impairment
Increased gastric motility
Increased blood volume
The Correct Answer is A
A: Renal dysfunction is common in older adults and can lead to decreased clearance of medications from the body, increasing the risk of toxicity. Monitoring for signs of toxicity is crucial in this population.
B: Pancreatic impairment can affect digestion and insulin production but is not the primary reason for monitoring medication toxicity in older adults.
C: Increased gastric motility is not typically associated with aging. In fact, decreased gastric motility is more common and can affect drug absorption.
D: Increased blood volume is not a common physiological change in older adults. Decreased renal function and changes in body composition are more relevant factors affecting medication metabolism and excretion.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A: Clostridium difficile infection typically develops after prolonged antibiotic use and is not the most likely cause of diarrhea immediately after starting enteral feeding.
B: Antibiotic therapy can cause diarrhea, but it is not the most likely cause in this scenario where the diarrhea started soon after beginning enteral feeding.
C: Formula intolerance is the most likely cause of diarrhea shortly after starting enteral feeding. The patient’s digestive system may not tolerate the formula well, leading to diarrhea.
D: Bacterial contamination is a possible cause but is less likely to cause immediate diarrhea after starting enteral feeding compared to formula intolerance. Proper handling and preparation of the formula should minimize this risk.
Correct Answer is C
Explanation
A: A simple face mask provides a moderate concentration of oxygen but does not have a one-way valve to deliver the highest concentration of oxygen.
B: A Venturi mask delivers a precise concentration of oxygen but is not designed to provide the highest concentration of oxygen with a one-way valve.
C: A non-rebreather mask is the correct choice. It has a one-way valve that prevents exhaled air from re-entering the bag, allowing the delivery of the highest concentration of oxygen to the client.
D: A partial rebreather mask provides a high concentration of oxygen but does not have a one-way valve, making it less effective than a non-rebreather mask for delivering the highest oxygen concentration.
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