Which of the following is the most important muscle in the normal respiratory process of an adult?

Trapezius

Diaphragm

Rectus abdominus

Sternocleidomastoid

Answer and Explanation

The Correct Answer is B

A.   Trapezius: The trapezius is a muscle of the upper back and neck and does not play a primary role in normal respiration.
B.   Diaphragm: The diaphragm is the most important muscle for respiration. It contracts and moves downward during inhalation, increasing the thoracic cavity's volume and drawing air into the lungs.
C.   Rectus abdominus: The rectus abdominus is a core muscle that helps in forced expiration but is not essential in normal breathing.
D.   Sternocleidomastoid: This muscle assists with forced inspiration, but it is not the primary muscle for regular breathing.

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Correct Answer is A

Explanation

A. Smoking, hypertension, obesity, diabetes, and high cholesterol: These are all well-established major risk factors for heart disease and should be included in the patient's history.
B. Personality type, high cholesterol, diabetes, and smoking: While personality type may contribute to stress, the other factors listed are more directly linked to heart disease.
C. Alcohol consumption, obesity, diabetes, stress, and high cholesterol: Alcohol consumption may be a risk factor, but smoking and hypertension are more significant.
D. Family history, hypertension, stress, and age: While family history, age, and hypertension are important, this option misses key factors like obesity, smoking, and diabetes.

A. Assess the forearm and hand for infection B. Assess the lower extremities C. Assess the dorsalis pedis pulses D. None of the above

Correct Answer is B

Explanation

A. Assess the forearm and hand for infection would be relevant if the swollen lymph node were in the upper extremity, but the inguinal node would be more associated with a lower extremity infection.
B. Assess the lower extremities is the correct next step since the inguinal lymph nodes drain the lower body, including the legs and genital area.
C. Assess the dorsalis pedis pulses is not the next step, though it may be important if vascular concerns are suspected.
D. None of the above is incorrect because assessing the lower extremities is the next logical step.

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Which of the following is the most important muscle in the normal respiratory process of an adult?

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Naxlex Comprehensive Predictor Exams

In assessing a patient's major risk factors for heart disease, which would the nurse want to include when taking a history?

Correct Answer is A

Explanation

The nurse palpates a swollen inguinal lymph node. Which assessment should the nurse perform next?

Correct Answer is B

Explanation

During an assessment, the nurse knows that expected assessment findings in the normal adult lung include the presence of:

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Which of the following is the most important muscle in the normal respiratory process of an adult?