29. The cardiac glycosides are essential in the therapy of a client with a myocardial infarction (MI). What should indicate to a nurse that a therapeutic response to this medication has been achieved?
29. The cardiac glycosides are essential in the therapy of a client with a myocardial infarction (MI). What should indicate to a nurse that a therapeutic response to this medication has been achieved?
. A 15% increase in apical pulse rate.
. A rise in CVP from 12 to 15 cm.
. Urine output 30 mL/hr (previously 40 to 50 mL/hr).
. Diminished crackles in the lungs.
Test-Taking Tip
Only one of the options indicates an improvement in cardiac function.
Content Area: Adult Health, Cardiology; Integrated Process: Nursing Process, Evaluation; Cognitive Level: Application; Client Need/Subneed: Physiological Integrity/Pharmacological and Parenteral Therapies/Expected Effects/Outcomes
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Answer 1 is incorrect because an increase in rate would not be desired post-MI. Answer 2 is incorrect because an increase in central venous pressure (CVP) would signal increasing demand on the heart. Answer 3 is incorrect because this would indicate a decrease in renal perfusion. Answer 4 is correct because improved cardiac contractions will increase cardiac output. Crackles would be heard if heart failure were present.