The nurse is discussing the blood flow pattern of the heart. The nurse should recognize which of the following as the accurate blood flow pattern of the heart?
Aorta-Right atrium-right ventricle-pulmonary vein-lungs- pulmonary artery left atrium-left ventricle
vena cava-right atrium-right ventricle-pulmonary vein-lungs- pulmonary artery-left atrium-left ventricle
vena cava→ right atrium-right ventricle-pulmonary artery-lungs- pulmonary vein-left atrium-left ventricle
Aorta-right atrium-right ventricle-lungs-pulmonary vein-left atrium-left ventricle- vena cava
The Correct Answer is C
In this sequence:
Vena cava brings deoxygenated blood from the body into the right atrium.
Blood flows from the right atrium to the right ventricle through the tricuspid valve.
The right ventricle pumps blood into the pulmonary artery to the lungs.
In the lungs, blood is oxygenated and returns to the heart via the pulmonary veins into the left atrium.
From the left atrium, blood moves to the left ventricle through the bicuspid (mitral) valve.
The left ventricle then pumps oxygenated blood into the body through the aorta.
This sequence represents the systemic and pulmonary circulation of the heart.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Percussion of the posterior chest: Percussion helps assess the underlying structures of the chest but does not directly confirm symmetric chest expansion.
B. Inspection of the shape and configuration of the chest wall: Inspection is a crucial part of assessing chest symmetry. Any deformities, asymmetry, or abnormalities in the shape and configuration of the chest wall can be visually identified.
C. Placing the palmar surface of the fingers of one hand against the chest and having the client repeat "ninety-nine": This technique, known as tactile fremitus, involves feeling for vibrations or tremors while the client repeats a phrase. While it can provide information about underlying lung conditions, it's not primarily used to confirm symmetric chest expansion.
D. Placing hands sideways on the posterolateral chest wall with thumbs pointing together at the level of T9 or T10: This technique, known as chest expansion measurement, is used to assess symmetric chest expansion. Placing hands in this manner allows the nurse to feel for bilateral chest expansion during inspiration, ensuring that both sides of the chest expand symmetrically.
Correct Answer is A
Explanation
A. Consists of two lobes.
This statement is correct. The left lung consists of two lobes: the upper lobe and the lower lobe. The right lung, not the left lung, has three lobes: upper, middle, and lower lobes.
B. Primarily consists of an upper lobe on the posterior chest.
This statement is not accurate. The upper lobe of the left lung is present in the anterior and posterior parts of the chest. It is not limited to the posterior chest.
C. Is shorter than the right lung because of the underlying stomach.
This statement is not correct. The left lung is not shorter due to the underlying stomach. The left lung is slightly smaller than the right lung to accommodate the space for the heart, but this size difference is not due to the stomach.
D. Is divided by the horizontal fissure.
This statement is not accurate. The left lung is not divided by the horizontal fissure. The horizontal fissure is a feature of the right lung, not the left lung. The left lung is divided by the oblique fissure into the upper and lower lobes
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