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
A hematoma is a collection of blood outside a blood vessel that can cause swelling, pain, and bruising. It can indicate bleeding from the artery where the catheter was inserted, which can be a serious complication of cardiac catheterization.
The nurse should notify the provider immediately if a hematoma is observed.
Choice A is wrong because heart rate 90/min is within the normal range for adults and does not indicate a complication.
Choice C is wrong because bounding pulses in the affected extremity are expected after cardiac catheterization, as they indicate good blood flow to the area.
Choice D is wrong because report of discomfort at the insertion site is common and usually mild after cardiac catheterization.
The nurse can provide pain relief as needed, but does not need to notify the provider unless the pain is severe or persistent.
Normal ranges for heart rate are 60-100 beats per minute for adults. Normal ranges for blood pressure are 120/80 mmHg or lower for systolic pressure and 80 mmHg or lower for diastolic pressure. Normal ranges for oxygen saturation are 95-100% for adults.
Correct Answer is B
Explanation
The correct answer is choice B. Isolate the client from staff who are pregnant.
Choice A rationale: Aspirin should not be administered to children or adolescents with viral infections like rubella due to the risk of Reye's syndrome, a potentially fatal condition that causes liver and brain damage.
Choice B rationale: Rubella (German measles) is particularly dangerous for pregnant women because it can cause congenital rubella syndrome in the fetus, leading to severe birth defects. Therefore, isolating the client from pregnant staff is crucial to prevent exposure.
Choice C rationale: Airborne precautions are not necessary for rubella. Rubella is transmitted through respiratory droplets, so droplet precautions, not airborne precautions, are appropriate.
Choice D rationale: Koplik spots are associated with measles (rubeola), not rubella. Therefore, monitoring for Koplik spots is not relevant for a client with rubella.
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