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kiaraancheta kiaraancheta
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A patient's poor oxygenation is thought to be related to decreased contractility. Which assessment findings would the nurse evaluate as supporting that decrease? (Select all that apply.)
1. The patient has a history of two myocardial infarctions.
2. There is ECG evidence of current myocardial ischemia.
3. Troponin levels indicate an acute myocardial infarction.
4. The nurse auscultated an S3 heart sound.
5. Crackles are present in lung bases bilaterally.
Textbook 

High-Acuity Nursing


Edition: 6th
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dupoyjohn134dupoyjohn134
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A month ago
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More questions for this book are available here
The answer is 1, 2, 3
Rationales:
1. A history of MI indicates the possibility that the heart muscle is not working efficiently. A decrease in heart muscle efficiency causes decreased contractility.
2. Current myocardial ischemia causes decreased heart muscle efficiency, which causes decreased contractility.
3. Acute myocardial infarction decreases heart muscle efficiency. Decrease in heart muscle efficiency causes decreased contractility.
4. The presence of an S3 heart sound indicates fluid volume imbalance. A fluid volume increase affects stroke volume, not contractility.
5. Lung crackles indicate fluid overload, which affects stroke volume, not contractility.
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kiaraancheta Author
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Just got PERFECT on my quiz
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Good timing, thanks!
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