The nurse has an order to administer U-500 Humulin R insulin 10 units. How many units should the nurse draw up when administering this insulin?
50 units of Humulin R insulin in a 100-unit insulin syringe.
10 units of Humulin R insulin in a 500-unit insulin syringe.
10 units of Humulin R insulin in a 30-unit insulin syringe.
50 units of Humulin R insulin in a 50-unit insulin syringe.
The Correct Answer is B
The correct answer is B. 10 units of Humulin R insulin in a 500-unit insulin syringe.
Choice A rationale: This choice is incorrect because a 100-unit syringe would not be able to hold enough U-500 insulin (5 times more concentrated) to deliver the prescribed 10 units. Using a 100-unit syringe could lead to an inaccurate dose.
Choice B rationale: This choice is correct. U-500 Humulin R insulin is a concentrated form containing 5 times more insulin per milliliter compared to U-100 insulin. Therefore, a 500-unit syringe is appropriate to measure the prescribed 10 units accurately.
Choice C rationale: This choice is incorrect. A 30-unit syringe would not have the capacity to hold even the 10 units of U-500 insulin. It would be impossible to draw up the correct dose with this syringe size.
Choice D rationale: This choice is incorrect. Similar to choice A, a 50-unit syringe is not suitable for U-500 insulin due to its limited capacity. It would lead to an inaccurate measurement of the 10-unit dose.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale
While medication can be part of an effective treatment plan for anxiety disorders, it is not typically the first line of treatment. Medication alone is not considered the most productive way to treat anxiety disorders.
Choice B rationale
Uncovering and addressing the cause of anxiety is considered an effective approach to treating anxiety disorders. This often involves cognitive behavioral therapy (CBT), which helps individuals change negative thought patterns and develop coping strategies.
Choice C rationale
Allowing the client to self-medicate with over-the-counter (OTC) medications is not recommended. OTC medications may not be effective in treating anxiety disorders and could potentially have harmful interactions with other medications.
Choice D rationale
Immediately starting multiple-drug therapy is not typically the first line of treatment for anxiety disorders. It’s important to start with one medication and monitor its effectiveness before adding additional medications.
Correct Answer is B
Explanation
Choice A rationale
While obtaining a blood pressure is an important part of overall patient assessment, it is not the priority action before administering antibiotics for a urinary tract infection.
Choice B rationale
Obtaining a urine specimen for culture and sensitivity is the priority action before administering antibiotics for a urinary tract infection. This allows for identification of the specific bacteria causing the infection and determination of the most effective antibiotic for treatment.
Choice C rationale
Obtaining a PTT (partial thromboplastin time) is not typically necessary before administering antibiotics for a urinary tract infection.
Choice D rationale
Obtaining a platelet count is not typically necessary before administering antibiotics for a urinary tract infection.
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