The nurse is doing an examination of a client's anterior thorax. The nurse recognizes that the trachea bifurcates anteriorly at the:
Xiphoid process.
Suprasternal notch.
Sternal angle.
Costal angle.
The Correct Answer is C
A. Xiphoid process:
The xiphoid process is a small, cartilaginous extension at the inferior end of the sternum (breastbone). It does not play a role in the bifurcation of the trachea.
B. Suprasternal notch:
The suprasternal notch, also known as the fossa jugularis sternalis or jugular notch, is the visible dip in the superior part of the manubrium of the sternum between the clavicular notches. It is an important anatomical landmark for assessing the position of the trachea during emergency situations but is not the location of tracheal bifurcation.
C. Sternal angle (Angle of Louis):
The sternal angle, or Angle of Louis, is a palpable notch located at the articulation of the manubrium and the body of the sternum. It is where the second rib attaches and serves as a useful reference point for counting ribs and locating internal structures like the tracheal bifurcation.
D. Costal angle:
The costal angle is the acute angle formed by the junction of the costal margins at the xiphoid process. It is not related to the tracheal bifurcation.
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. 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.
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