A nurse is reviewing the sequence of the cardiac cycle. The nurse recognizes that the electrical stimulus of the cardiac cycle follows which sequence?

AV node-• SA node-• bundle of His -• Erb's Point

Bundle of His -• AV node -• SA node -• Erb's Point

AV node -• SA node -• bundle of His -• bundle branches

SA node -• AV node -• bundle of His -• bundle branches

Answer and Explanation

The Correct Answer is D

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.

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Correct Answer is A

Explanation

A. Dysphagia:
Dysphagia, or difficulty swallowing, is a common issue in clients who have had a stroke, particularly when there is facial drooping or weakness on one side of the face, which can affect the muscles involved in swallowing. A stroke can cause motor impairment, affecting the coordination and strength required for effective swallowing. This condition increases the risk of aspiration (food or liquid entering the airway), which can lead to respiratory complications such as pneumonia. It is crucial to assess for dysphagia in stroke patients and provide appropriate interventions, such as speech therapy and modified diets, to ensure safe swallowing.

B. Rhinitis:
Rhinitis, which refers to inflammation of the nasal passages causing symptoms like congestion, sneezing, and runny nose, is not directly related to stroke. Although rhinitis can be caused by allergies, infections, or environmental irritants, it is not a typical finding following a stroke. The presence of facial drooping on one side is more suggestive of a neurological issue affecting motor control, rather than an issue with the nasal passages or upper respiratory system.

C. Xerostomia:
Xerostomia, or dry mouth, can occur for various reasons, such as medication side effects or dehydration, but it is not a primary concern directly associated with stroke-induced facial drooping. While facial nerve dysfunction can affect salivation (since the facial nerve helps control the salivary glands), dysphagia and facial drooping are more immediate concerns for stroke patients. Xerostomia may occur in some cases, but it is not as directly linked to stroke as dysphagia is.

D. Epistaxis:
Epistaxis, or nosebleeds, is not a typical complication of stroke and is not associated with facial drooping. While certain factors like dry air, medications (e.g., anticoagulants), or trauma could cause nosebleeds, they are not common findings directly related to a stroke. The focus should be on potential neurological deficits, such as difficulty swallowing, impaired speech, or weakness, rather than epistaxis.

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 reviewing the sequence of the cardiac cycle. The nurse recognizes that the electrical stimulus of the cardiac cycle follows which sequence?

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Naxlex Comprehensive Predictor Exams

A nurse is caring for a client who has had a stroke. id assesses right-sided facial drooping. The nurse should also anticipate which of the following assessment findings?

Correct Answer is A

Explanation

A nurse is assessing the tonsils of a client and notes that the tonsils are involuted, granular in appearance, and have deep crypts. nurse should recognize that which of the following is the correct response to these findings?

Correct Answer is D

Explanation

A nurse is reviewing the sequence of the cardiac cycle. The nurse recognizes that the electrical stimulus of the cardiac cycle follows which sequence?

A nurse is listening to the heart sounds of a client. What information about S2 sounds should the nurse recognize as accurate?

A nurse is assessing the tonsils of a client and notes that the tonsils are involuted, granular in appearance, and have deep crypts. The nurse should recognize that which of the following is the correct response to these findings?

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A nurse is preparing to auscultate for heart sounds on a client. Which technique should be used by the nurse?

A nurse is documenting assessment findings on a client. Which of the following entries should the nurse identify as subjective data? (Select All that Apply.)

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