A nurse is preparing to administer subcutaneous enoxaparin 40 mg using a prefilled syringe of enoxaparin 40 mg/0.4 ml to an adult client following hip arthroplasty.
Which of the following actions should the nurse plan to take?
Aspirate carefully after inserting the needle into the client’s skin.
Administer the injection in the client’s thigh.
Insert the needle at 90 degrees.
Expel the air bubble from the prefilled syringe before injecting.
The Correct Answer is C
This is because enoxaparin is administered subcutaneously, which means under the skin, and the needle should be inserted fully into the skin to ensure proper delivery of the drug.
Choice A is wrong because aspirating (pulling back on the plunger) after inserting the needle is not recommended for subcutaneous injections of enoxaparin, as it may increase the risk of bleeding or bruising.
Choice B is wrong because administering the injection in the client’s thigh is not the preferred site for enoxaparin. The preferred site is the abdomen, at least 2 inches away from the navel, as it has more fatty tissue and less blood vessels than other areas.
Choice D is wrong because expelling the air bubble from the prefilled syringe is not necessary for enoxaparin. The air bubble helps to ensure that the entire dose of enoxaparin is injected and prevents blood from entering the syringe.
Normal ranges for enoxaparin dosage depend on the indication and the patient’s weight, but for prophylaxis of deep vein thrombosis after hip arthroplasty, the usual dose is 40 mg once a day for 3 weeks.
The prefilled syringe of enoxaparin 40 mg/0.4 ml contains the correct dose for this indication.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Erectile dysfunction drugs should not be used when a patient is taking nitrates.This is because both types of drugs cause blood vessels to dilate, which can lead to a dangerous drop in blood pressure. This can increase the risk of heart attack, stroke or fainting.
Choice B is wrong because alpha-adrenergic blockers are sometimes used together with nitrates to treat high blood pressure and angina. They work by relaxing the smooth muscles of the blood vessels, which lowers blood pressure and improves blood flow.
Choice C is wrong because calcium channel blockers are also used to treat high blood pressure and angina. They work by blocking the entry of calcium into the muscle cells of the heart and blood vessels, which reduces the force of contraction and relaxes the blood vessels.
Choice D is wrong because beta-adrenergic blockers are another class of drugs that can be used with nitrates to treat high blood pressure and angina. They work by blocking the effects of adrenaline on the heart and blood vessels, which slows down the heart rate and lowers blood pressure.
Normal ranges for blood pressure vary depending on age, gender and other factors, but generally they are between 90/60 mmHg and 120/80 mmHg for healthy adults.
Correct Answer is C
Explanation
This is because potassium sparing diuretics do not lower potassium levels in the blood, unlike some other types of diuretics. Potassium is an important electrolyte that helps regulate nerve and muscle functions, especially the heart. Low potassium levels can cause irregular heartbeats and other problems.Therefore, people who take diuretics should avoid foods that are high in potassium, such as bananas, oranges, tomatoes, and potatoes, unless they are taking potassium sparing diuretics.
Choice A is wrong because thiazide diuretics, such as hydrochlorothiazide, can cause low potassium levels in the blood and increase the risk of arrhythmias.
People who take thiazide diuretics may need to take potassium supplements or eat more potassium-rich foods.
Choice B is wrong because osmotic diuretics, such as mannitol, do not affect potassium levels in the blood.
They work by increasing the amount of water in the urine, but do not alter the electrolyte balance.
Osmotic diuretics are mainly used to treat brain swelling or glaucoma.
Choice D is wrong because loop diuretics, such as lasix, can also cause low potassium levels in the blood and increase the risk of arrhythmias.
People who take loop diuretics may also need to take potassium supplements or eat more potassium-rich foods.
Normal ranges for potassium in the blood are 3.5 to 5.0 millimoles per liter (mmol/L).
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