A nurse is mixing regular insulin and NPH insulin in the same syringe prior to administering it to a client who has diabetes mellitus.
Which of the following actions should the nurse take first?
Inject air into the NPH vial.
Withdraw the NPH insulin from the vial.
Withdraw the regular insulin from the vial.
Inject air into the regular insulin vial.
The Correct Answer is A
The correct sequence for mixing regular insulin and NPH insulin in the same syringe is important to ensure proper dosing. The nurse should follow these steps:
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Inject air into the NPH (intermediate-acting) insulin vial: Injecting air into the NPH vial first helps to equalize the pressure in the vial, making it easier to withdraw the insulin later. This step is done first to avoid contaminating the regular insulin vial with NPH insulin.
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Inject air into the regular insulin vial: Next, inject an amount of air equal to the intended regular insulin dose into the regular insulin vial.This also helps to equalize the pressure and makes it easier to withdraw the insulin.
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Withdraw the regular insulin from the vial : The nurse should withdraw the regular insulin first because it is clear and not contaminated. This prevents any NPH insulin from mixing into the regular insulin vial.
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Withdraw the regular insulin from the vial: Finally, the nurse withdraws the NPH insulin. Since the regular insulin has already been drawn up, there is no risk of contaminating the regular insulin with NPH insulin.
This sequence ensures that you don't contaminate the vials, and you accurately withdraw the appropriate doses of each insulin type.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Lisinopril is an angiotensin converting enzyme (ACE) inhibitor that is used to treat high blood pressure and heart failure. It works by relaxing the blood vessels and increasing the supply of blood and oxygen to the heart. However, one of the common side effects of lisinopril is hypotension, which means low blood pressure. Hypotension can cause dizziness, faintness, or lightheadedness when getting up suddenly from a lying or sitting position. Therefore, the nurse should monitor the client’s blood pressure when administering lisinopril and report any signs of hypotension to the doctor.
Choice A is wrong because tinnitus, which means ringing or buzzing in the ears, is not a common or serious side effect of lisinopril.
Tinnitus can be caused by other factors such as ear infections, loud noises, or medications such as aspirin or antibiotics.
Choice C is wrong because hypokalemia, which means low potassium levels in the blood, is not a common or serious side effect of lisinopril. In fact, lisinopril can cause hyperkalemia, which means high potassium levels in the blood, especially in patients with kidney problems or diabetes. Hyperkalemia can cause irregular heartbeats, muscle weakness, or numbness. Therefore, the nurse should monitor the client’s potassium levels when administering lisinopril and avoid giving potassium supplements or salt substitutes that contain potassium.
Choice D is wrong because bradycardia, which means slow heart rate, is not a common or serious side effect of lisinopril.
Lisinopril does not affect the heart rate directly, but it can lower the blood pressure and improve the heart function.
Bradycardia can be caused by other factors such as heart block, sinus node dysfunction, or medications such as beta blockers or calcium channel blockers.
Correct Answer is D
Explanation
The client will need to have blood levels drawn to monitor the therapeutic and toxic levels of theophylline, a bronchodilator that is used to treat symptoms of asthma and other lung conditions. The normal range of theophylline in the blood is 10 to 20 mcg/mL.
Choice A is wrong because the client should not sprinkle the medication in applesauce or any other food. Theophylline is a sustained-release capsule that should be swallowed whole and not crushed or chewed.
Choice B is wrong because the client should avoid caffeine while on this medication, as it can increase the side effects of theophylline, such as nausea, vomiting, headache, and irregular heart rate.
Choice C is wrong because the client should not limit fluid intake while on this medication unless instructed by the doctor.
Fluid intake helps prevent dehydration and kidney problems that can affect theophylline levels in the blood.
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