The nurse is preparing to administer insulin intravenously. Which statement about the administration of intravenous insulin is true?
Insulin is never given intravenously.
Only regular insulin can be administered intravenously.
Insulin aspart or insulin lispro can be administered intravenously, but there must be a 50% dose reduction.
Any form of insulin can be administered intravenously at the same dose as that ordered for subcutaneous administration.
The Correct Answer is B
Choice A reason: This is incorrect because insulin can be given intravenously in certain situations, such as diabetic ketoacidosis, hyperglycemic hyperosmolar state, or perioperative care.
Choice B reason: This is correct because regular insulin is the only type of insulin that can be administered intravenously, as it is a short-acting insulin that has a rapid onset and peak. Other types of insulin, such as intermediate-acting or long-acting, are not suitable for intravenous use, as they have a delayed onset and peak and may cause hypoglycemia.
Choice C reason: This is incorrect because insulin aspart and insulin lispro are rapid-acting insulins that have a faster onset and peak than regular insulin. They are not recommended for intravenous use, as they may cause severe hypoglycemia. They are usually given subcutaneously before meals to control postprandial blood glucose levels.
Choice D reason: This is incorrect because not all forms of insulin can be administered intravenously, as explained above. Only regular insulin can be given intravenously, and the dose may differ from the subcutaneous dose depending on the patient's blood glucose level and insulin sensitivity.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
The correct answer is c. 2,525 mL.
Choice A reason:
1,350 mL is calculated by considering only the lactated Ringer’s IV intake. The calculation is as follows:
- Lactated Ringer’s IV at 150 mL/hr for 9 hr: 150 mL/hr × 9 hr = 1,350 mL. This option does not include the intake from cefazolin, packed RBCs, sodium chloride boluses, or famotidine.
Choice B reason:
1,600 mL is not a correct calculation based on the given intake. This value does not accurately sum up any combination of the provided intake components.
Choice C reason:
2,525 mL is the correct total intake. The detailed calculation is:
- Lactated Ringer’s IV at 150 mL/hr for 9 hr: 150 mL/hr × 9 hr = 1,350 mL.
- Cefazolin in 100 mL of 0.9% sodium chloride: 100 mL.
- Two units of packed RBCs: 275 mL + 250 mL = 525 mL.
- Two IV bolus infusions of 250 mL of 6.0% sodium chloride: 250 mL + 250 mL = 500 mL.
- Famotidine in 50 mL of 0.9% sodium chloride: 50 mL.
Adding these together: 1,350 mL + 100 mL + 525 mL + 500 mL + 50 mL = 2,525 mL.
Choice D reason:
2,100 mL is not a correct calculation based on the given intake. This value does not accurately sum up any combination of the provided intake components.
Correct Answer is A
Explanation
Choice A reason: Decreases inflammation is a therapeutic effect of prednisone. Prednisone is a corticosteroid that suppresses the immune system and reduces the production of inflammatory mediators. This helps to relieve the pain, swelling, and stiffness of rheumatoid arthritis.
Choice B reason: Increases bone density is not a therapeutic effect of prednisone. Prednisone can cause bone loss and osteoporosis by decreasing calcium absorption and increasing calcium excretion. This increases the risk of fractures and bone damage.
Choice C reason: Reduces risk of infection is not a therapeutic effect of prednisone. Prednisone can increase the risk of infection by weakening the immune system and making it less able to fight off pathogens. This requires close monitoring and prophylactic antibiotics.
Choice D reason: Improves peripheral blood flow is not a therapeutic effect of prednisone. Prednisone can impair peripheral blood flow by causing vasoconstriction and increasing blood pressure. This can worsen the symptoms of peripheral vascular disease and increase the risk of thrombosis.
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