What is responsible to move the blood supply from the feet toward the inferior vena cava?

Thigh muscles

Arterial pulsations

Venous flow

Calf muscles

Answer and Explanation

The Correct Answer is D

A. Thigh muscles: While thigh muscles assist in venous return, they are not as critical as the calf muscles in moving blood from the feet.

B. Arterial pulsations: Arterial pulsations help in the forward movement of blood in the arteries but do not directly assist with venous return from the feet.

C. Venous flow: Venous flow is the general term for blood movement in veins, but it does not specify the mechanism responsible for moving blood from the feet.

D. Calf muscles: The calf muscles, through their contraction (often referred to as the "muscle pump"), are crucial in helping to push blood upwards from the feet towards the inferior vena cava. This mechanism is essential for effective venous return.

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Correct Answer is B

Explanation

A. Diaphragm on one side, bell on the opposite side: Suitable for a full cardiac examination, as it can assess both high and low-frequency sounds.

B. Diaphragm Only: Less suitable for a full cardiac examination because it may not effectively capture low-frequency sounds such as certain heart murmurs.

C. Bell on one side, Diaphragm on the opposite side: Effective for a full cardiac examination, as it can assess both high and low-frequency sounds.

D. Diaphragm and bell on same side: Allows for a complete assessment of heart sounds, though it may be less versatile than separate components on each side.

A. Fourth intercostal space, left sternal border B. Second intercostal space, left sternal border C. Fifth intercostal space, left midclavicular line D. Third intercostal space left axillary line

Correct Answer is C

Explanation

C. Fifth intercostal space, left midclavicular line: The apical impulse, or point of maximal impulse (PMI), is typically palpated at the fifth intercostal space, left midclavicular line, where the apex of the heart is closest to the chest wall.

A. Fourth intercostal space, left sternal border: This location is not typically used for palpating the apical impulse; it is more relevant for auscultating heart sounds.

B. Second intercostal space, left sternal border: This location is used for auscultating the aortic and pulmonic valves.

D. Third intercostal space left axillary line: This is not a standard location for palpating the apical impulse.

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What is responsible to move the blood supply from the feet toward the inferior vena cava?

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Naxlex Comprehensive Predictor Exams

Of the four types of stethoscopes, which one is most unsuitable to conduct a full cardiac examination?

Correct Answer is B

Explanation

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Correct Answer is C

Explanation

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