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
Obtain the specimen from the retention port. This is because the retention port is a sterile site that can be accessed by a syringe to aspirate urine without contaminating the specimen or the closed drainage system. The retention port should be cleaned with an alcohol swab before inserting the syringe. The specimen should be transferred to a sterile container and labeled appropriately.
Choice A is wrong because unclamping the collection port below the bag would allow urine to flow out of the bag, which is not sterile and may contain bacteria or sediment. Choice C is wrong because disconnecting the catheter from the collection tubing would break the closed drainage system and increase the risk of infection. Choice D is wrong because using the balloon port to obtain the sterile specimen would deflate the balloon that holds the catheter in place and cause trauma to the bladder wall.
Normal ranges for urine characteristics vary depending on the type of analysis, but some general parameters are:
- Color: pale yellow to amber
- Clarity: clear or slightly cloudy
- Odor: faint aromatic
- pH: 4.5 to 8.0
- Specific gravity: 1.005 to 1.030
- Protein: <150 mg/24 hr
- Glucose: negative
- Ketones: negative
- Blood: negative
- Nitrites: negative
- Leukocyte esterase: negative
- Bacteria: <10,000 CFU/mL
Correct Answer is D
Explanation
The correct first action for the charge nurse to take in response to an increase in facility-acquired catheter infections is toidentify possible precipitating factors related to the infections. This is because understanding the root cause of the problem is crucial before implementing any changes or interventions. By identifying the factors contributing to the increase in infections, the nurse can then develop targeted strategies to address these specific issues.
Now, let’s discuss why the other options are not the first actions to take:
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Schedule nursing staff training for infection control procedures: While training is important, it should be based on identified needs. Without first understanding the precipitating factors of the increased infections, the training may not address the actual issues at hand.
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Meet with providers to discuss measures to decrease the infections: This could be a subsequent step after identifying the precipitating factors. Meeting with providers without concrete data or understanding of the problem may lead to ineffective solutions.
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Revise the current policy for catheter care: Policy revision should be based on evidence and identified needs. It would be premature to revise policies without first understanding what factors are contributing to the increase in infections.
In summary, the first step in addressing a problem is always to understand its causes. Only then can effective solutions be developed and implemented.
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