A nurse is assessing the symmetry of a client's chest. The nurse should understand that which technique best confirms symmetric expansion of the chest?

Inspection of the shape and configuration of the chest during normal breathing

Placing hands sideways on the posterolateral chest wall with thumbs pointing together at the level of T9 or T10

Percussion of the posterior chest to initiate vibration of the lung structures

Placing the palmar surface of the fingers of one hand against the chest and having the client repeat "ninety nine’’

Answer and Explanation

The Correct Answer is B

A) Inspection of the shape and configuration of the chest during normal breathing:
While inspecting the shape and configuration of the chest can provide important information about potential deformities or abnormalities (such as a barrel chest or scoliosis), it does not directly assess the symmetry of chest expansion. Inspection primarily focuses on the external appearance rather than the physiological movement of the chest wall during respiration. Symmetry of chest expansion requires more than visual observation; it involves assessing the movement of the chest during inhalation and exhalation.

B) Placing hands sideways on the posterolateral chest wall with thumbs pointing together at the level of T9 or T10:
This technique is the most effective for confirming symmetric expansion of the chest. The nurse places their hands on the patient's back, with the thumbs positioned at the level of T9 or T10, and asks the patient to take a deep breath. As the patient inhales, the nurse assesses the expansion of both sides of the chest by observing whether the thumbs move apart symmetrically. This test directly evaluates the expansion of the lungs and chest wall during respiration and is the most accurate way to assess symmetry.

C) Percussion of the posterior chest to initiate vibration of the lung structures:
Percussion is a technique used to assess the underlying lung tissue and the presence of conditions like pneumonia, fluid accumulation, or air trapping. It does not directly assess the symmetry of chest expansion. While percussion may provide valuable diagnostic information about the lungs, it does not help in determining how evenly the chest is expanding during normal breathing.

D) Placing the palmar surface of the fingers of one hand against the chest and having the client repeat "ninety-nine":
This technique refers to vocal fremitus, where the nurse places their hands on the client's chest while the client repeats "ninety-nine." It helps assess the transmission of sound vibrations through the chest wall, which can be used to detect areas of consolidation or fluid in the lungs. However, it does not directly evaluate the symmetry of chest expansion. The vibration felt on both sides of the chest may be different in cases of lung disease, but this test does not assess the movement of the chest during breathing.

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Correct Answer is D

Explanation

A) AV node → SA node → bundle of His → Erb's Point:
This sequence is incorrect because the electrical impulse of the heart starts at the SA (sinoatrial) node, not the AV (atrioventricular) node. The SA node is the natural pacemaker of the heart, initiating the electrical signal. The correct order of conduction is SA node → AV node → bundle of His → bundle branches, and finally, the Purkinje fibers. Erb's Point is an anatomical reference point for auscultation, not part of the electrical conduction pathway.

B) Bundle of His → AV node → SA node → Erb's Point:
This sequence is also incorrect. The electrical impulse originates at the SA node, not the bundle of His. The SA node stimulates the AV node, which in turn sends the signal to the bundle of His and then to the bundle branches. This pathway is essential for coordinating the contraction of the heart muscle, starting from the atria and moving to the ventricles.

C) AV node → SA node → bundle of His → bundle branches:
This sequence is reversed and incorrect. The impulse starts at the SA node, not the AV node. The SA node fires first, sending the electrical signal to the AV node, and then the signal travels down the bundle of His, into the left and right bundle branches, and finally to the Purkinje fibers.

D) SA node → AV node → bundle of His → bundle branches:
This is the correct sequence of the electrical conduction pathway of the heart. The electrical impulse originates at the SA node (the heart's natural pacemaker), then travels to the AV node, where it is delayed to allow the atria to contract and fill the ventricles. From there, the impulse moves down the bundle of His, which splits into the left and right bundle branches, leading to the Purkinje fibers that transmit the impulse throughout the ventricles, causing them to contract. This sequence ensures proper coordination and timing of the heart's contractions.

A. Obtain a throat culture for possible streptococcal (strep) infection B. Continue with the assessment, looking for any other abnormal findings C. Refer the client to their primary provider D. No response is needed; this appearance is normal for the tonsils

Correct Answer is D

Explanation

A) Obtain a throat culture for possible streptococcal (strep) infection:
A throat culture would be indicated if the client presents with symptoms of a strep throat infection, such as a sore throat, fever, or difficulty swallowing. However, the description of involuted, granular tonsils with deep crypts is typically a normal finding, particularly in adults. This appearance is not suggestive of a bacterial infection like strep throat, which usually presents with signs of acute inflammation, exudates, or tenderness. Therefore, a throat culture is not necessary based on these findings alone.

B) Continue with the assessment, looking for any other abnormal findings:
While continuing the assessment is important in any physical exam, the appearance of granular, involuted tonsils with deep crypts is generally considered a normal anatomical variation, particularly in adults. There is no indication of an abnormality that would require further investigation unless other concerning symptoms are present. If no other abnormal findings are identified, no additional action is needed at this point.

C) Refer the client to their primary provider:
Referral to a primary provider would be appropriate if there were signs of infection, significant symptoms, or concerns about the tonsils, such as severe swelling, pain, or visible pus. However, the description of the tonsils as involuted and granular, with deep crypts, does not suggest a need for referral. This is a normal variation, and no referral is necessary unless other abnormal findings or symptoms are present.

D) No response is needed; this appearance is normal for the tonsils:
This is the correct response. Tonsils can naturally become more granular and involuted (shrunken or indented) as a person ages. The deep crypts are also a normal feature of tonsils and do not necessarily indicate pathology. These findings are typically seen in adults and do not require intervention unless accompanied by signs of infection or other abnormalities. Therefore, no further action is necessary for this normal anatomical appearance.

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A nurse is assessing the symmetry of a client's chest. The nurse should understand that which technique best confirms symmetric expansion of the chest?

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Naxlex Comprehensive Predictor Exams

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Correct Answer is D

Explanation

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Correct Answer is D

Explanation

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