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 D
Explanation
Alpha 1 adrenergic blocking agents have a vasodilating effect and can be used for the management of hypertension. They work by blocking the alpha 1 receptors on the vascular smooth muscle, which normally cause vasoconstriction when stimulated by catecholamines like epinephrine and norepinephrine.By preventing this constriction, alpha 1 blockers lower the peripheral resistance and blood pressure
Choice A is wrong because alpha 3 adrenergic blockers do not exist.There are only two types of alpha receptors: alpha 1 and alpha 2
Choice B is wrong because alpha 2 adrenergic antagonists do not have a vasodilating effect.
They block the alpha 2 receptors, which are located presynaptically on the sympathetic nerve terminals and postsynaptically on some vascular smooth muscle cells.Alpha 2 receptors inhibit the release of norepinephrine when activated, so blocking them would increase the sympathetic activity and vasoconstriction
Choice C is wrong because alpha 1 adrenergic agonists do not have a vasodilating effect.
They stimulate the alpha 1 receptors, which cause vasoconstriction and increase the blood pressure.Alpha 1 agonists are used to treat hypotension and nasal congestion
Correct Answer is A
Explanation
Dry mouth is a common adverse effect of anticholinergic agents used to treat overactive bladder syndrome (OAB).Anticholinergic agents prevent involuntary contractions of the bladder detrusor muscle by blocking the action of acetylcholine, a neurotransmitter that stimulates the muscle.However, anticholinergics are not tissue specific, and they also affect other parts of the body where acetylcholine is involved, such as the salivary glands, the gastrointestinal tract, and the eyes.
Choice B is wrong because restlessness is not a typical side effect of anticholinergic agents.In fact, anticholinergics can cause sedation and drowsiness in some people.
Choice C is wrong because increased salivation is the opposite of what anticholinergics do.Anticholinergics reduce the secretion of saliva, causing dry mouth.
Choice D is wrong because diarrhea is also the opposite of what anticholinergics do.Anticholinergics slow down the movement of the gastrointestinal tract, causing constipation.
Some other possible adverse effects of anticholinergic agents include blurred vision, urinary retention, confusion, memory impairment, and increased risk of dementia and mortality.
Therefore, these drugs should be used with caution and under medical supervision.
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