A few days after a Cerebral Vascular Accident, the patient's family asks the nurse if tissue plasminogen activator (tPA) is a drug therapy option now. The nurse's response based on the knowledge that this drug must be used within:
4 hours
1 hour
24 hours
8 hours
The Correct Answer is A
A. 4 hours:
This option indicates that tissue plasminogen activator (tPA) must be administered within 4 hours of the onset of stroke symptoms to be considered as a drug therapy option. tPA is a thrombolytic medication used to dissolve blood clots in ischemic stroke, and its effectiveness is highest when administered promptly after the onset of symptoms.
B. 1 hour:
Administering tPA within 1 hour of stroke onset would be extremely challenging and impractical. It typically takes time for patients to recognize stroke symptoms, seek medical attention, and undergo diagnostic evaluations before tPA administration. While time is of the essence in stroke treatment, 1 hour is too short of a timeframe for most patients to receive tPA.
C. 24 hours:
Administering tPA beyond 4.5 hours of stroke onset is generally contraindicated due to the increased risk of complications, including hemorrhagic transformation of the stroke. While there may be some extended time windows considered for certain patients under specific circumstances, such as those meeting eligibility criteria for extended thrombolytic therapy, 24 hours is outside the standard timeframe for tPA administration.
D. 8 hours:
While tPA administration within 8 hours of stroke onset may be feasible for some patients, it is beyond the standard recommended time window for optimal effectiveness. As mentioned earlier, tPA is most effective when administered within the first 3 to 4.5 hours after the onset of symptoms, with earlier administration associated with better outcomes.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Withhold the next dose and notify the physician:
Withholding the next dose of the cholinergic agent is the appropriate immediate action because the presence of inspiratory and expiratory wheezing bilaterally suggests bronchoconstriction or bronchospasm, which can be a serious adverse reaction to the medication. Notifying the physician promptly allows for further assessment and management of the patient's respiratory symptoms. The physician may need to adjust the medication regimen, order diagnostic tests, or provide treatment for bronchoconstriction.
B. Give the next dose:
Administering the next dose of the cholinergic agent could worsen the patient's respiratory symptoms and exacerbate bronchoconstriction. This action is contraindicated in the presence of wheezing, as it may further compromise the patient's respiratory function.
C. Assess heart rate:
While assessing heart rate is an important aspect of patient assessment, it is not the priority in this scenario. The priority is to address the respiratory distress and potential bronchoconstriction associated with the cholinergic agent. Wheezing is a respiratory symptom that suggests airway obstruction, and immediate intervention is necessary to ensure adequate oxygenation and ventilation.
D. Assess blood pressure:
Similarly, while assessing blood pressure is important in patient care, it is not the priority in this situation. The priority is to address the respiratory distress and potential bronchoconstriction associated with the cholinergic agent. Wheezing indicates respiratory compromise, and prompt action is required to prevent further respiratory deterioration.
Correct Answer is A
Explanation
A.Computerized tomography angiography (CTA)
This is a likely diagnostic test that the provider may prescribe. CTA uses computed tomography (CT) imaging to visualize the blood vessels in the brain and neck. It can help identify areas of stenosis, occlusion, or other abnormalities in the blood vessels that may contribute to the TIA symptoms.
B. Complete blood count (CBC)
A complete blood count (CBC) is a routine laboratory test that assesses various components of blood, such as red blood cells, white blood cells, and platelets. While it may not be specific to diagnosing a transient ischemic attack (TIA), it can help evaluate for underlying conditions such as anemia or thrombocytosis that could contribute to TIA symptoms or increase the risk of stroke.
C. Prothrombin time (PT)
Prothrombin time (PT) is a laboratory test that evaluates the clotting ability of blood and is typically used to monitor anticoagulant therapy. While abnormal coagulation parameters may be associated with certain conditions that predispose to TIA (such as atrial fibrillation), PT alone is not a specific diagnostic test for TIA.
D. Transesophageal echocardiogram (TEE)
This is another possible diagnostic test that the provider may prescribe. TEE is a specialized echocardiogram that provides detailed images of the heart structures by inserting an ultrasound probe
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