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
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, a 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 a 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 the 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 C
Explanation
This client should be assessed first because they are at risk of hypoglycemia, which is a medical emergency that can cause seizures, coma, or death if not treated promptly.
The nurse should check the client’s blood glucose level again and provide additional carbohydrates or glucose if needed.
Choice A is wrong because a client who is scheduled for a procedure in 1 hr is not in immediate danger and can be assessed later.
The nurse should verify the client’s consent, allergies, and vital signs before the procedure, but this is not a priority over a client with low blood glucose.
Choice B is wrong because a client who received pain medication 30 min ago for postoperative pain is likely to have improved pain relief and does not need immediate assessment.
The nurse should monitor the client’s pain level, vital signs, and respiratory status periodically, but this is not a priority over a client with low blood glucose.
Choice D is wrong because a client who has 100 mL of fluid remaining in his IV bag is not in immediate danger and can be assessed later.
The nurse should change the IV bag when it is empty or nearly empty, but this is not a priority over a client with low blood glucose.
Normal blood glucose levels are between 70 to 100 mg/dL (3.9 to 5.5 mmol/L) when fasting, and less than 140 mg/dL (7.8 mmol/L) two hours after eating. A blood glucose level below 70 mg/dL (3.9 mmol/L) is considered hypoglycemia and requires immediate treatment. Orange juice is a source of simple carbohydrates that can raise blood glucose quickly, but it may not be enough to prevent hypoglycemia in some cases.
Correct Answer is A
Explanation
This is because continuous enteral feedings through an NG tube can increase the risk of aspiration, which is the inhalation of food or fluids into the lungs. Measuring gastric residual volumes (GRV) can help monitor the tolerance and absorption of the feedings and prevent overfeeding. GRV is the amount of fluid aspirated from the stomach via an enteral tube to check for gastric emptying. The normal range of GRV is less than 200 ml.
Choice B is wrong because advancing the rate of the feeding every 2 hr can lead to overfeeding, abdominal distension, nausea, vomiting and diarrhea.
The rate of the feeding should be adjusted according to the client’s nutritional needs and tolerance.
Choice C is wrong because maintaining the head of the bed at a 20° angle is not enough to prevent aspiration. The head of the bed should be elevated at least 30° to 45° during and for at least one hour after feeding.
Choice D is wrong because flushing the NG tube with 30 mL 0.9% sodium chloride before and after medication is not related to continuous enteral feedings. This is a practice to prevent clogging of the tube and ensure proper delivery of medication. Flushing the tube with water before and after feeding is also recommended to maintain patency and hydration.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.
