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 A
Explanation
The correct answer is A. I can lift objects that are less than 10 pounds.
Here's a breakdown of why the other options are incorrect:
- B. I can resume activities, such as sewing. - Sewing requires fine motor skills and close eye work, which can increase intraocular pressure and potentially worsen the detached retina.
- C. I can go jogging after 2 weeks. - Strenuous activities like jogging can increase blood pressure and strain the eye, potentially leading to another retinal detachment.
- D. I should bend at the waist when putting on my shoes. - Bending at the waist increases intraocular pressure and can strain the eye. It's recommended to sit down or use a stool to put on shoes.
Correct Answer is D
Explanation
Answer and explanation.
The correct answer is choice D. Herpes zoster is a contraindication for receiving acupuncture treatment because it is an infectious skin disorder that can be transmitted by needles or contact with the affected area. Acupuncture should not be performed on areas of skin that are inflamed, ulcerated, or have sensory deficit.
Choice A is wrong because hypertension is not a contraindication for acupuncture. However, some caution is advised when needling points that may lower blood pressure, such as LI 4, LI 11, ST 36, and SP 6.
Choice B is wrong because hypothyroidism is not a contraindication for acupuncture. In fact, some studies suggest that acupuncture may have beneficial effects on thyroid function and symptoms of hypothyroidism.
Choice C is wrong because obesity is not a contraindication for acupuncture.
Acupuncture may help with weight loss by regulating appetite, metabolism, and hormones.
Some of the absolute contraindications for acupuncture include pregnancy (especially certain points that may induce labor or abortion), medical and surgical emergencies, malignant tumors, bleeding disorders, and use of a demand pacemaker. Some of the relative contraindications include drug or alcohol intoxication, lack of consent, immune deficiency, abnormal heart valves, and fear of needles.
Normal ranges for blood pressure are 120/80 mmHg or lower for systolic and diastolic pressure respectively.
Normal ranges for thyroid-stimulating hormone (TSH) are 0.4 to 4.0 mIU/L.
Normal ranges for body mass index (BMI) are 18.5 to 24.9 kg/m2.
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