An RN is teaching a student nurse about tissue plasminogen activator (tPA) administration in a patient with ischemic stroke. Which statement made by the student nurse indicates a need for further teaching?
"tPA should be administered within 12 hrs of the onset of a stroke."
"tPA is administered by intraarterial infusion."
"tPA is administered IV."
"PA requires BP monitoring during and 24 hrs after the treatment."
The Correct Answer is A
A. tPA (tissue plasminogen activator) should be administered within 3 to 4.5 hours of the onset of ischemic stroke symptoms, not 12 hours. Administering it after this window increases the risk of complications such as bleeding.
B. tPA is administered by intraarterial infusion is true, but it refers to a specific technique for certain stroke types.
C. tPA is administered IV is correct for intravenous administration in many cases of ischemic stroke.
D. tPA requires BP monitoring during and 24 hrs after the treatment is accurate as blood pressure control is critical when administering tPA.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. BP 126/54 mm Hg, pulse 58 beats/min, respirations 10 breaths/min - While the low pulse and respirations should be assessed, this blood pressure isn't as concerning.
B. BP 112/56 mm Hg, pulse 98 beats/min, respirations 28 breaths/min - These vital signs are within a safer range compared to the critical changes in D.
C. BP 129/65 mm Hg, pulse 60 beats/min, respirations 20 breaths/min - These are stable vital signs.
D. The BP of 172/54 mm Hg, combined with bradycardia (pulse of 58 beats/min) and hypoventilation (respirations of 10 breaths/min), is indicative of Cushing's triad, a late sign of increased intracranial pressure, which is an emergency requiring immediate attention.
Correct Answer is B
Explanation
A. Increased intracranial pressure (ICP) typically causes hypertension (increased blood pressure) rather than hypotension.
B. A decreased level of consciousness is one of the hallmark signs of increased ICP, as pressure on the brainstem affects consciousness.
C. Tachypnea may occur with ICP, but it is less specific compared to decreased consciousness.
D. This can occur with brain injury but is not as directly indicative of ICP as decreased consciousness.
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