A nurse is reviewing the anatomy and physiologic functioning of the heart. The nurse should recognize that which statement best describes the atrial kick?
The atria contract toward the end of diastole and push the remaining blood into the ventricles.
The atria contract during systole and attempt to push against closed valves.
Atrial kick is the pressure exerted against the atria as the ventricles contract during systole.
Contraction of the atria at the beginning of diastole can be felt as a palpitation.
The Correct Answer is A
A. The atria contract toward the end of diastole and push the remaining blood into the ventricles.
This choice is correct. During atrial systole (atrial contraction), the atria contract, pushing the remaining blood into the ventricles. This additional filling of the ventricles optimizes cardiac output.
B. The atria contract during systole and attempt to push against closed valves.
This statement is incorrect. The atria do not contract during systole; they contract during diastole (atrial systole) to fill the ventricles.
C. Atrial kick is the pressure exerted against the atria as the ventricles contract during systole.
This statement is incorrect. Atrial kick refers to the atrial contraction, not the pressure exerted against the atria.
D. Contraction of the atria at the beginning of diastole can be felt as a palpitation.
This statement is not entirely accurate. A palpitation is a sensation of rapid or strong heartbeat, which might be felt during various cardiac events, not specifically during atrial contraction at the beginning of diastole.

Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. The pupils constrict when the examiner's index finger slowly moves toward the client's nose.
This statement is correct. Visual accommodation is the process by which the eye's lens changes shape to focus on objects at varying distances. When an object moves closer to the eyes, the pupils constrict to adjust and focus on the near object, preventing double vision.
B. The client involuntarily blinks in the presence of bright light directed over the pupils during the eye exam.
This statement describes the pupillary light reflex, not visual accommodation. The pupillary light reflex is the response of the pupils to light exposure.
C. The client's peripheral vision becomes sharper when the examiner shines a light over the pupils.
This statement is not accurate. Peripheral vision sharpness is not related to visual accommodation. Visual accommodation mainly involves adjusting focus for objects at varying distances.
D. The pupils dilate when the examiner's index finger slowly moves toward the client's nose.
This statement is incorrect. Pupils should constrict, not dilate, when focusing on a near object (as in visual accommodation). Dilation occurs in low-light conditions or in response to sympathetic stimulation.

Correct Answer is A
Explanation
A. Atelectatic crackles that do not have a pathologic cause:
Atelectatic crackles are short, popping, crackling sounds heard during auscultation. They occur in individuals who are in a supine position and disappear after a few breaths. These crackles are not indicative of any pathological condition; they are common when the lungs are not fully aerated, especially when a person is lying down.
B. Vesicular breath sounds:
Vesicular breath sounds are normal lung sounds heard over the peripheral lung areas. They are soft, low-pitched, and continuous throughout inspiration and part of expiration. Vesicular breath sounds are the typical sounds heard during routine breathing and are not associated with crackling or popping noises.
C. Fine wheezes:
Wheezes are high-pitched whistling sounds heard during expiration. They occur due to narrowed airways and are commonly associated with conditions like asthma or bronchoconstriction. Fine wheezes suggest a partial obstruction in the smaller airways, causing turbulent airflow, leading to the characteristic sound.
D. Fine crackles and may be a sign of pneumonia:
Fine crackles are high-pitched, discontinuous, crackling sounds heard during inspiration. They can occur due to the sudden opening of small airways, and their presence may indicate fluid in the lungs or lung inflammation. Fine crackles are often associated with conditions such as pneumonia, heart failure, or interstitial lung diseases.
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