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 C

Explanation

A. Palpation of the thyroid helps assess its size, consistency, and tenderness but does not aid in detecting a bruit.
B. Swallowing helps assess the mobility of the thyroid but does not aid in auscultating for a bruit.
C. The bell of the stethoscope is used to detect low-pitched sounds, such as a bruit, which might be heard if there is increased blood flow through the thyroid gland, as seen in hyperthyroidism or Graves' disease.
D. The diaphragm is used to detect high-pitched sounds, such as lung or heart sounds. The bell is better for detecting a bruit.

A. Ulcer B. Erosion C. Nodule D. Cyst

Correct Answer is A

Explanation

A. Ulcer refers to a wound with a loss of epidermis and dermis, often irregular and deeper, potentially bleeding.
B. Erosion involves a shallow loss of the epidermis only, not extending into the dermis.
C. Nodule is a solid, raised lesion that is typically firm and not ulcerated.
D. Cyst is a sac-like structure containing fluid or semi-solid material, not a wound with loss of tissue.

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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

A patient's thyroid gland is enlarged, and the nurse is preparing to auscultate the gland for the presence of a bruit. What technique should the nurse use to assess for a bruit?

Correct Answer is C

Explanation

The nurse is assessing a lesion on a patient and observes a focal loss of epidermis and dermis, a depression extending into the dermis, irregularly shaped, and bleeding. This type of wound is known as a/an

Correct Answer is A

Explanation

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