A nurse is auscultating heart sounds on a client and hears an extra sound late in diastole, just before the S1. How should the nurse document this finding?
The third heart sound (S3)
The fourth heart sound (S4)
A split-second heart sound S2
A friction nub
The Correct Answer is B
A) The third heart sound (S3): The third heart sound (S3) occurs early in diastole, immediately following S2. It is often associated with conditions that cause increased volume and pressure in the ventricles, such as heart failure or dilated cardiomyopathy. S3 is not heard late in diastole, so it does not match the described timing of the extra heart sound.
B) The fourth heart sound (S4): The fourth heart sound (S4) is heard late in diastole, just before S1. It is caused by the atria contracting forcefully to push blood into a non-compliant or stiff ventricle, often associated with conditions like left ventricular hypertrophy or ischemic heart disease. The timing of S4, occurring just before S1, makes it the correct identification of the described extra heart sound.
C) A split second heart sound S2: A split S2 occurs when the aortic and pulmonic valves do not close simultaneously, causing the second heart sound (S2) to be heard as two distinct components. This split can vary with respiration but does not occur late in diastole. Therefore, it does not align with the extra heart sound heard just before S1.
D) A friction rub: A friction rub is a sound associated with pericarditis, caused by the rubbing of inflamed pericardial layers. It has a distinct, grating quality and can be heard throughout the cardiac cycle. A friction rub is not a late diastolic sound, making it an incorrect identification for the extra heart sound described.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A) Obtain a throat culture for possible streptococcal (strep) infection:
A throat culture for streptococcal infection is generally warranted when there are signs and symptoms of a bacterial infection, such as a sore throat, fever, exudate on the tonsils, or swollen lymph nodes. The description provided—involuted, granular tonsils with deep crypts—is a normal, age-related finding and not indicative of an infection. Therefore, obtaining a throat culture is unnecessary unless additional clinical signs of infection are present.
B) Continue with the assessment, looking for any other abnormal findings:
While it is always important to complete a thorough assessment and look for other abnormal findings, the specific characteristics described (involuted, granular tonsils with deep crypts) are normal, particularly in adults. This is a common finding and does not require further investigation unless accompanied by other symptoms such as pain, swelling, or visible pus, which would warrant a closer look.
C) Refer the client to their primary provider:
Referral to a primary provider is generally recommended if there are significant concerns about the tonsils, such as persistent swelling, pain, or signs of infection. However, the description provided does not suggest a pathological issue; these characteristics are typically considered normal in adults. Referral would only be necessary if additional concerning symptoms were present, such as fever, difficulty swallowing, or changes in voice.
D) No response is needed; this appearance is normal for the tonsils:
This is the correct response. Involuted (shrunken), granular tonsils with deep crypts are a normal, age-related finding, especially in adults. Over time, the tonsils tend to shrink and develop more pronounced crypts (pockets). This is part of the natural aging process and is not usually a sign of pathology. These tonsil changes are often seen in individuals who have had repeated infections or as part of the natural aging process.
Correct Answer is A
Explanation
A) A blend of fibrous, glandular, and adipose tissues: The internal structure of the breast is composed of a mixture of fibrous, glandular, and adipose tissues. The glandular tissue is responsible for producing milk, the fibrous tissue provides structural support, and the adipose tissue stores fat. This combination of tissues gives the breast its shape and functional capabilities, making it a complex and dynamic organ.
B) Primarily milk ducts which function as milk reservoirs: While the breast does contain milk ducts that transport milk from the glandular tissue to the nipple, it is not primarily composed of these ducts. The milk ducts are an important component, but they do not make up the majority of the breast's internal structure. The blend of different tissues is what defines the breast’s anatomy.
C) Primarily muscle with small amounts of fibrous tissue: The breast itself does not contain significant muscle tissue. The primary muscles related to the breast are the pectoral muscles, which lie beneath the breast tissue but are not part of the internal breast structure. The internal breast primarily consists of fibrous, glandular, and adipose tissues, not muscle.
D) Glandular tissue to attach the breast to the chest wall: The glandular tissue is crucial for milk production, but it does not function to attach the breast to the chest wall. The attachment of the breast to the chest wall is facilitated by the Cooper's ligaments, which are fibrous bands that help maintain structural integrity. Glandular tissue primarily serves the function of milk production.
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