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
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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Related Questions
Correct Answer is B
Explanation
Choice A reason: Decreased Body Temperature
Decreased body temperature is not typically associated with hyperthyroidism. In fact, hyperthyroidism often causes an increase in body temperature due to the accelerated metabolic rate. Patients with hyperthyroidism may experience heat intolerance and excessive sweating, but not a decrease in body temperature.
Choice B reason: Tachycardia
Tachycardia, or an abnormally fast heart rate, is a common symptom of hyperthyroidism. The elevated levels of thyroid hormones (T4 and T3) increase the body’s metabolism, leading to an increased heart rate. This can result in palpitations and a feeling of a racing heart, which are characteristic signs of hyperthyroidism. Therefore, tachycardia is the most likely vital sign abnormality in this scenario.
Choice C reason: Hypotension
Hypotension, or low blood pressure, is not typically associated with hyperthyroidism. Instead, hyperthyroidism can sometimes cause an increase in blood pressure due to the heightened metabolic activity and increased cardiac output4. Therefore, hypotension is not a characteristic finding in patients with elevated thyroid hormone levels.
Choice D reason: Slow Respiratory Rate
A slow respiratory rate is not commonly seen in hyperthyroidism. The condition usually leads to an increased respiratory rate due to the body’s heightened metabolic demands. Patients with hyperthyroidism may experience shortness of breath and rapid breathing, but not a slow respiratory rate.

Correct Answer is C
Explanation
Choice A reason:
A serum potassium level of 5.0 mEq/L is within the normal range (3.5-5.0 mEq/L). While it is on the higher end of normal, it does not require immediate intervention in the context of SIADH. Potassium levels are crucial for cardiac and muscle function, but this value does not indicate a critical imbalance.
Choice B reason:
A serum calcium level of 8.0 mg/dL is slightly below the normal range (8.5-10.2 mg/dL). Mild hypocalcemia can occur in various conditions, but it is not typically associated with SIADH and does not require immediate intervention unless symptomatic or significantly lower.
Choice C reason:
A serum sodium level of 125 mEq/L indicates hyponatremia, which is a hallmark of SIADH. Hyponatremia can lead to severe neurological symptoms, including seizures, confusion, and coma, especially if it develops rapidly. Immediate intervention is required to correct the sodium imbalance and prevent serious complications.
Choice D reason:
A blood urea nitrogen (BUN) level of 24 mg/dL is within the upper normal range (7-20 mg/dL). While slightly elevated, it is not critically high and does not require immediate intervention in the context of SIADH. BUN levels can be influenced by various factors, including hydration status and renal function.
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