A nurse is teaching a client who is newly diagnosed with type 1 diabetes mellitus about insulin safety. Which of the following statements by the nurse is appropriate?
Insulin is stable at room temperature for one month.
Insulins can be mixed in the same syringe.
Storing insulin in the freezer will prolong its stability.
Clients with type 1 diabetes mellitus should keep backup medication and supplies in their car.
The Correct Answer is A
The correct answer is a. Insulin is stable at room temperature for one month.
Choice A Reason:
Insulin is stable at room temperature (between 59°F and 86°F) for up to one month. This is important for patients to know, especially if they do not have immediate access to refrigeration. However, it is crucial to avoid exposing insulin to extreme temperatures, such as direct sunlight or freezing conditions, as these can degrade the medication’s effectiveness.
Choice B Reason:
While some types of insulin can be mixed in the same syringe, this practice is not universally applicable to all insulin types. For example, rapid-acting and intermediate-acting insulins can sometimes be mixed, but long-acting insulins should not be mixed with other insulins. Therefore, this statement is not entirely accurate and should be clarified based on the specific types of insulin being used.
Choice C Reason:
Storing insulin in the freezer is not recommended as freezing can damage the insulin, rendering it ineffective. Insulin should be stored in a refrigerator at temperatures between 36°F and 46°F. If insulin is accidentally frozen, it should not be used.
Choice D Reason:
While it is advisable for clients with type 1 diabetes to have backup medication and supplies, storing them in a car is not recommended due to the potential for extreme temperature fluctuations. Insulin and other diabetes supplies should be kept in a stable, controlled environment to ensure their efficacy.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A reason: Increased Thirst, Increased Urine Output, and Weight Loss
Increased thirst, increased urine output, and weight loss are symptoms commonly associated with diabetes mellitus, particularly uncontrolled diabetes. These symptoms occur due to the body’s attempt to eliminate excess glucose through urine, leading to dehydration and subsequent weight loss. However, these symptoms are not typically associated with elevated TSH levels, which indicate hypothyroidism.
Choice B reason: Fatigue, Constipation, Weight Gain
Fatigue, constipation, and weight gain are classic symptoms of hypothyroidism2. When the thyroid gland is underactive, it produces insufficient thyroid hormones, leading to a slowdown in the body’s metabolism. This results in fatigue, weight gain, and constipation, among other symptoms. Elevated TSH levels are a compensatory response by the pituitary gland to stimulate the thyroid to produce more hormones, confirming hypothyroidism.

Choice C reason: Anxiety, Unintended Weight Loss, Palpitations
Anxiety, unintended weight loss, and palpitations are symptoms typically associated with hyperthyroidism, not hypothyroidism. Hyperthyroidism occurs when the thyroid gland produces excessive thyroid hormones, leading to an accelerated metabolism. This results in symptoms such as weight loss, increased heart rate (palpitations), and anxiety. Elevated TSH levels would not be expected in hyperthyroidism; instead, TSH levels would be low due to negative feedback from high thyroid hormone levels.
Choice D reason: Shakiness, Sweating, Nausea
Shakiness, sweating, and nausea can be symptoms of various conditions, including hypoglycemia (low blood sugar), anxiety, or panic attacks. These symptoms are not specific to thyroid dysfunction and are not typically associated with elevated TSH levels. Hypothyroidism, indicated by high TSH levels, usually presents with symptoms related to a slowed metabolism, such as fatigue and weight gain, rather than shakiness and sweating.
Correct Answer is C
Explanation
Choice A Reason:
Taking levothyroxine with high-protein foods can interfere with the absorption of the medication. High-protein foods can bind to the medication, reducing its effectiveness. Therefore, it is not recommended to take levothyroxine with high-protein foods.
Choice B Reason:
While it is important to take levothyroxine with a full glass of water to ensure the tablet is swallowed properly and to aid in its absorption, taking it with fruit juice is not recommended. Certain juices, like grapefruit juice, can interfere with the absorption of levothyroxine.
Choice C Reason:
Levothyroxine should be taken on an empty stomach, ideally 30 to 60 minutes before breakfast or at least 3 to 4 hours after the last meal. This timing helps ensure optimal absorption of the medication. Food can significantly reduce the absorption of levothyroxine, making it less effective.
Choice D Reason:
Taking levothyroxine during a meal is not recommended because food can interfere with the absorption of the medication. It is best to take it on an empty stomach to ensure maximum absorption and effectiveness.
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