The nurse is reviewing the results of the client's echocardiogram and notes that the ejection fraction is 35%. The nurse anticipates that which of the following medications will be ordered to increase the client's cardiac output?
Heparin
Adenosine
Warfarin
Digoxin
The Correct Answer is D
A. Heparin is an anticoagulant medication used primarily to prevent and treat blood clots. It does not directly affect cardiac output or ejection fraction.
B. Adenosine is used to treat supraventricular tachycardia (SVT) by slowing conduction through the AV node. It does not directly affect cardiac output or ejection fraction in the context of heart failure.
C. Warfarin is an anticoagulant used to prevent blood clots. Similar to heparin, it does not affect cardiac output or ejection fraction.
D. Digoxin is a medication that increases the strength and efficiency of heart contractions (positive inotropic effect) and slows the heart rate (negative chronotropic effect). It is commonly used in heart failure to improve symptoms and increase cardiac output by enhancing the heart's ability to pump blood effectively.
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Related Questions
Correct Answer is C
Explanation
A. Medicare does cover individuals under 65 years old who have end-stage renal disease (ESRD) and meet certain criteria.
B. There are programs that allow individuals with both Medicare and low income to qualify for Medicaid, which can help cover additional healthcare costs that Medicare may not fully cover.
C. While Medicare does provide significant coverage for healthcare services, it is not entirely free of out- of-pocket costs. Medicare Part A typically covers hospital stays, skilled nursing facility care, hospice, and some home health care services with no premiums for most people.
D. Medicare is indeed federally-funded health insurance primarily for individuals aged 65 and older. It also covers certain younger individuals with disabilities and those with ESRD.
Correct Answer is B
Explanation
A. Atrial flutter typically presents with a regular atrial rate (usually around 250-350 beats per minute) and a characteristic "sawtooth" pattern of flutter waves (F-waves) on the ECG. This condition would not present with irregular ventricular rates and is less likely based on the ECG findings described.
B. Atrial fibrillation is identified by an irregularly irregular rhythm and the absence of P-waves on the ECG, which is replaced by erratic activity.
C. Unstable angina presents with chest pain or discomfort due to reduced blood flow to the heart muscles, usually related to atherosclerotic plaque rupture or erosion. It does not cause the ECG findings described (absence of P-waves and irregular ventricular rate).
D. PACs are early atrial depolarizations that can cause palpitations but do not typically result in the absence of P-waves or irregular ventricular rates as described in the scenario.
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