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. The client should maintain systolic BP between 120 and 129 mm Hg.
This is an appropriate recommendation. The American Heart Association (AHA) guidelines recommend maintaining systolic BP below 130 mm Hg to reduce the risk of stroke and other cardiovascular events in individuals with a history of stroke or TIA.
B. The client should maintain systolic BP between 130 and 135 mm Hg.
This is slightly above the recommended range. While systolic BP below 135 mm Hg is generally recommended for individuals with a history of stroke or TIA, a range of 130-135 mm Hg may still be acceptable based on individual patient factors and risk assessments.
C. The client should maintain systolic BP between 136 and 140 mm Hg.
This is above the recommended range. Systolic BP between 136 and 140 mm Hg may be considered elevated and should be managed to lower levels to reduce the risk of recurrent TIA or stroke.
D. The client should maintain systolic BP between 141 and 145 mm Hg.
This is above the recommended range. Systolic BP above 140 mm Hg is generally considered elevated and should be managed to lower levels to reduce the risk of recurrent TIA or stroke.
Correct Answer is A
Explanation
A. Adventitious breath sounds:
Adventitious breath sounds refer to abnormal lung sounds heard upon auscultation of the chest. These sounds include crackles (rales), wheezes, rhonchi, and pleural friction rubs. In the context of fluid volume excess, particularly in the acute phase of a cerebrovascular accident (CVA) or stroke, adventitious breath sounds such as crackles are indicative of pulmonary edema. Pulmonary edema occurs when there is an excessive accumulation of fluid in the lungs, impairing gas exchange and leading to symptoms such as shortness of breath and respiratory distress.
B. Weak pulse:
A weak pulse may suggest poor perfusion or decreased cardiac output rather than fluid volume excess. While decreased cardiac output can be a consequence of heart failure, which may be associated with fluid volume excess, a weak pulse is not a direct indicator of fluid overload. In the acute phase of a CVA, a weak pulse may prompt further assessment for other cardiovascular complications or neurogenic shock.
C. Hypotension:
Hypotension, or low blood pressure, is not typically associated with fluid volume excess. Instead, hypotension may indicate hypovolemia, shock, or other underlying cardiovascular conditions. While hypotension can occur secondary to severe heart failure or fluid overload in some cases, it is not a direct indicator of fluid volume excess in the acute phase of a CVA.
D. Poor skin turgor:
Poor skin turgor is a clinical finding associated with dehydration rather than fluid volume excess. In dehydration, the skin loses its elasticity and becomes less resilient when pinched. In contrast, fluid volume excess is characterized by edema, which may manifest as pitting or non-pitting edema, rather than poor skin turgor. However, in fluid volume excess, the skin may appear stretched or taut due to the accumulation of fluid in the interstitial spaces.
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