A nurse in an emergency department is reviewing the medical record of a client who is having an acute myocardial infarction.
Which of the following findings places the client at risk if he receives alteplase?
Family history of malignant hypertension.
Hip arthroplasty 1 week ago.
Chronic obstructive pulmonary disease.
Acute renal failure 6 months ago.
The Correct Answer is B
The correct answer is B. Hip arthroplasty 1 week ago.
Alteplase is a drug that dissolves blood clots by converting plasminogen to plasmin. It can be used for acute ischemic stroke, but it has some contraindications that depend on the indication and the type of administration of the drug. Some common contraindications for alteplase are hypersensitivity, active internal bleeding, history of intracranial hemorrhage, bleeding disorders, and high blood pressure. Other contraindications may vary depending on the specific condition and the time window of treatment. Alteplase can cause serious or fatal bleeding as a side effect.
Choice A is wrong because family history of malignant hypertension is not an absolute contraindication for alteplase, although uncontrolled hypertension (>185 mmHg SBP or >110 mmHg DBP) is.
Choice C is wrong because chronic obstructive pulmonary disease is not a contraindication for alteplase, although it may increase the risk of pulmonary hemorrhage.
Choice D is wrong because acute renal failure 6 months ago is not a contraindication for alteplase, although current use of direct thrombin inhibitors or direct factor Xa inhibitors is.
Normal ranges for blood pressure are <120/80 mmHg for normal, 120-129/<80 mmHg for elevated, 130-139/80-89 mmHg for stage 1 hypertension, and ≥140/≥90 mmHg for stage 2 hypertension.
Normal ranges for platelet count are 150,000 to 450,000 platelets per microliter of blood.
Normal ranges for INR are 0.8 to 1.2 for people who are not taking blood thinners and 2 to 3 for people who are taking warfarin.
Normal ranges for aPTT are 25 to 35 seconds for people who are not taking blood thinners and 46 to 70 seconds for people who are taking heparin.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
The correct answer is choice B. The client should keep the medication in the original container.
Dabigatran is a blood thinner that is used to prevent strokes or blood clots in people with atrial fibrillation, a type of irregular heartbeat. Dabigatran is sensitive to moisture and can lose its potency if exposed to humidity or heat. Therefore, it is important to store it in the original bottle or blister package that has a desiccant (drying agent) in the cap or cover. The client should also close the cap tightly after each use and keep the bottle away from excessive moisture, heat, and cold.
Choice A is wrong because storing the medication in the refrigerator can expose it to moisture and cause it to break down. Choice C is wrong because crushing the medication and mixing it with applesauce can alter its absorption and effectiveness. Choice D is wrong because the medication can be used up to 60 days after opening the bottle as long as it is stored properly. The normal dose of dabigatran for stroke prevention in atrial fibrillation is 150 mg twice a day, unless the client has kidney problems or other factors that require a lower dose.
Correct Answer is C
Explanation
The correct answer is choice C. Perform the procedure prior to meals.
This is because postural drainage involves positioning the child in different ways to help drain the mucus from the lungs.
If the child has a full stomach, this can cause nausea, vomiting, or aspiration. Therefore, the nurse should perform the procedure before meals or at least 1 hour after meals.
Choice A is wrong because the nurse should not hold the hand flat to perform percussions on the child.
Percussions are rhythmic clapping on the chest wall to loosen the mucus. The nurse should use a cupped hand to create a small air pocket that enhances the vibrations and prevents bruising.
Choice B is wrong because the nurse should not perform the procedure twice a day. The recommended frequency of postural drainage is 3 to 4 times a day, or more if needed, depending on the child’s condition and tolerance.
Choice D is wrong because the nurse should not administer a bronchodilator after the procedure.
A bronchodilator is a medication that relaxes and widens the airways, making it easier to breathe. The nurse should administer a bronchodilator before the procedure to enhance the effectiveness of postural drainage.
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