A nurse is reinforcing teaching with a client who has type 1 diabetes mellitus.
Which statement from the client indicates that the teaching is effective?
I will shake the insulin vial vigorously to mix.
I should inject the insulin into my abdominal area.
I should increase my insulin when I exercise.
I will freeze unopened insulin vials.
The Correct Answer is B
Choice A rationale:
Shaking the insulin vial vigorously is not recommended. It can lead to the formation of bubbles, which can affect the accuracy of the dose. Instead, insulin vials should be gently rolled between the hands to mix.
Choice B rationale:
Injecting insulin into the abdominal area is indeed a recommended practice. The abdomen is a preferred site for insulin injection because it has a faster absorption rate compared to other areas. This can help to more effectively regulate blood glucose levels.
Choice C rationale:
Exercise typically lowers blood glucose levels, so insulin doses may need to be reduced to prevent hypoglycemia. Clients should monitor their blood glucose closely and adjust insulin as directed by their healthcare provider.
Choice D rationale:
Freezing unopened insulin vials is not advised. Freezing can disrupt the insulin structure, rendering it ineffective. Insulin should be stored in a refrigerator at a temperature between 2°C and 8°C (36°F and 46°F). Once opened, it can be kept at room temperature for up to 28 days.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale:
Hypoglycemia, also known as low blood sugar, is a condition where blood sugar levels fall below the standard range. It is often related to diabetes treatment. When blood glucose levels are too low, individuals may experience symptoms such as shakiness, which is why the statement “I will feel shaky” indicates an understanding of the manifestations of hypoglycemia.
Choice B rationale:
The statement “My skin will be warm and moist” does not accurately represent the symptoms of hypoglycemia. While sweating can be a symptom of hypoglycemia, it does not necessarily mean that the skin will feel warm and moist. Therefore, this choice does not indicate a correct understanding of the manifestations of hypoglycemia.
Choice C rationale:
The statement “I will be more thirsty than usual” is more commonly associated with hyperglycemia, or high blood sugar, rather than hypoglycemia. Thirst is not typically a symptom of low blood sugar. Therefore, this choice does not indicate a correct understanding of the manifestations of hypoglycemia.
Choice D rationale:
The statement “My appetite will be decreased” is not a typical symptom of hypoglycemia. In fact, hunger is a common symptom of low blood sugar. Therefore, this choice does not indicate a correct understanding of the manifestations of hypoglycemia.
Correct Answer is A
Explanation
Choice A rationale:
Phenytoin is an anticonvulsant drug used in the prophylaxis and control of various types of seizures. It has a narrow therapeutic index, which means that the safe and toxic plasma levels of the drug are very close to each other. This characteristic makes the dosing of phenytoin challenging, as even small deviations from the recommended therapeutic range can lead to suboptimal treatment or adverse effects. Therapeutic effect without clinical signs of toxicity occurs more often with serum total concentrations between 10 and 20 mcg/mL34. Therefore, clinicians are advised to initiate therapeutic drug monitoring in patients who require phenytoin.
Choice B rationale:
The statement that phenytoin has a low chance of being effective is incorrect. Phenytoin is a widely used and effective anticonvulsant. It works by slowing down impulses in the brain that cause seizures. It is used to control seizures but does not treat all types of seizures. The effectiveness of phenytoin is not determined by its narrow therapeutic index but by its pharmacological action in the brain.
Choice C rationale:
The assertion that there is no difference between safe and toxic plasma levels of phenytoin is incorrect. There is indeed a difference between the safe (therapeutic) and toxic levels of phenytoin. The therapeutic range for phenytoin is typically between 10 and 20 mcg/mL34. Levels above this range can lead to toxicity, while levels below this range may not provide the desired therapeutic effect.
Choice D rationale:
The statement that a very small dosage of phenytoin can result in the desired therapeutic effect is not entirely accurate. While it’s true that phenytoin is effective in controlling seizures, the dosage required to achieve this effect is not necessarily “very small”. The usual adult dose for seizures is 100 mg orally 3 times a day. The dosage may need to be adjusted based on individual patient factors and response to therapy. Therefore, it’s not accurate to generalize that a “very small” dosage will result in the desired therapeutic effect for all patients.
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