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A nurse is teaching the patient with mitral valve problems about the valves of the heart. Starting on the right side of the heart, describe the sequence of blood flow through these valves. 1. Mitral; 2. Aortic; 3. Tricuspid; 4. Pulmonic

A.

4,3,2,1

B.

1,3, 2,4

C.

3,4, 1,2

D.

2,4, 1,3

Answer and Explanation

The Correct Answer is C

A. 4, 3, 2, 1 (Pulmonic → Tricuspid → Aortic → Mitral): This sequence incorrectly places the pulmonic valve first instead of the tricuspid.

B. 1, 3, 2, 4 (Mitral → Tricuspid → Aortic → Pulmonic): This sequence incorrectly starts with the mitral valve (left side of the heart), instead of the tricuspid (right side of the heart).

C. 3, 4, 1, 2 (Tricuspid → Pulmonic → Mitral → Aortic): Blood flow through heart valves follows this order:

  1. Tricuspid Valve (Right atrium → Right ventricle)
  2. Pulmonic Valve (Right ventricle → Pulmonary artery → Lungs)
  3. Mitral Valve (Left atrium → Left ventricle)
  4. Aortic Valve (Left ventricle → Aorta → Body)

D. 2, 4, 1, 3 (Aortic → Pulmonic → Mitral → Tricuspid): This sequence incorrectly places the aortic valve first, which is incorrect for blood flow through the heart.


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Related Questions

Correct Answer is B

Explanation

A. Making a clinical decision in the patient's best interest: Making decisions in the patient’s best interest is an essential part of nursing practice and demonstrates good clinical judgment.

B. Making a clinical decision based on previous shift assessments. Nursing assessments should be conducted for each shift, as a patient’s condition can change rapidly. Relying on previous assessments without reassessing can lead to missed changes in the patient’s status, potentially causing harm.

C. Making an ethical clinical decision. Ethical decision-making is an integral part of nursing practice and aligns with professional standards. There is no need for intervention if the decision is ethical.

D. Making an informed clinical decision. Informed clinical decision-making is based on current patient data, clinical guidelines, and critical thinking. This is a correct approach to nursing care and does not require intervention.

Correct Answer is C

Explanation

A. Stage I Pressure Ulcer: A Stage III pressure ulcer does not regress to a Stage I as it heals. It retains its original staging classification.

B. Stage III Pressure Ulcer: While the ulcer was originally Stage III, documenting it this way without specifying healing progress does not accurately reflect its current condition.

C. Healing Stage III Pressure Ulcer: Pressure ulcers are documented at their worst stage, even as they heal. The correct terminology includes "healing" to show improvement.

D. Healing Stage II Pressure Ulcer: A Stage III ulcer does not become a Stage II ulcer as it heals; instead, it is called a healing Stage III pressure ulcer.

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