While percussing the borders of the heart, the nurse picks up an area of dullness beginning at the 5th left intercostal space and moving upward to the 2nd left intercostal space at the sternal border. What do these findings indicate?
Expected finding.
Cardiac atrophy.
Benign variation.
Cardiac enlargement.
The Correct Answer is D
Choice A Reason:
Expected finding is incorrect. While some degree of dullness is expected during percussion of the heart borders due to the presence of solid cardiac tissue, the specific pattern described in the scenario, extending from the 5th left intercostal space to the 2nd left intercostal space at the sternal border, suggests an abnormality rather than an expected finding.
Choice B Reason:
Cardiac atrophy is incorrect. Cardiac atrophy refers to a decrease in the size or mass of the heart muscle, resulting in a smaller than normal heart. However, the described findings indicate dullness extending upward, suggesting an enlargement rather than atrophy of the heart.
Choice C Reason:
Benign variation is incorrect. Benign variations in cardiac percussion findings are less likely to produce a pattern of dullness extending from the 5th left intercostal space to the 2nd left intercostal space at the sternal border. This pattern is more indicative of cardiac enlargement or pathology rather than a benign variation.
Choice D Reason:
Cardiac enlargement is correct. During percussion of the heart borders, dullness indicates solid tissue, such as the heart. The area of dullness extending from the 5th left intercostal space to the 2nd left intercostal space at the sternal border suggests an enlargement of the cardiac silhouette. This enlargement could be due to various cardiac conditions, such as cardiomegaly (enlarged heart), left ventricular hypertrophy, or other structural abnormalities affecting the heart.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A Reason:
Assessing conjunctival sacs of lower lids for pallor is incorrect. Pallor of the conjunctival sacs, or inner eyelids, may indicate anemia or decreased blood flow. While it can be a sign of various health conditions, it is not specific to jaundice. Jaundice is characterized by yellowing of the skin and sclerae (the white part of the eyes) due to elevated bilirubin levels in the blood, so assessing for pallor would not directly confirm jaundice.
Choice B Reason:
Observing the client's urine for dark orange color is incorrect. Dark orange urine may indicate concentrated urine or dehydration, but it is not specific to jaundice. Jaundice primarily manifests as yellowing of the skin and sclerae due to elevated bilirubin levels, rather than a change in urine color. While changes in urine color may occur in certain liver conditions, such as obstructive jaundice, it is not the most direct or reliable method to confirm jaundice.
Choice C Reason:
Examining client's sclera for icterus is correct. Icterus, or yellowing of the sclerae (the white part of the eyes), is a classic sign of jaundice. Elevated levels of bilirubin in the blood lead to the yellow discoloration of the sclerae, providing a direct visual confirmation of jaundice. Examining the sclerae for icterus is a quick and reliable method to confirm jaundice during a physical assessment.
Choice D Reason:
Reviewing recent serum bilirubin levels is incorrect. Reviewing recent serum bilirubin levels can provide objective data on bilirubin levels in the blood, which may support the diagnosis of jaundice. Elevated serum bilirubin levels are characteristic of jaundice. While this option provides valuable information, it may not be immediately available during a physical assessment and does not directly confirm jaundice visually, unlike examining the sclerae for icterus.
Correct Answer is C
Explanation
Choice A Reason:
History of a fractured patella is incorrect. While a history of a fractured patella may lead to some degree of crepitation in the knee joint, especially if there was damage to the articular surfaces during the injury, it is less likely to cause widespread crepitation with joint movement. Crepitation associated with a fractured patella would typically be localized to the site of injury rather than throughout the joint.
Choice B Reason:
Knee arthroplasty surgery is incorrect. Knee arthroplasty surgery involves the replacement of a damaged knee joint with an artificial prosthesis. While crepitation can occur in some cases following knee arthroplasty, it is less likely to be the cause of crepitation observed in this scenario, especially if the client's knee arthroplasty was successful and without complications.
Choice C Reason:
Degenerative disease is correct. Degenerative disease of the knee joint, such as osteoarthritis, is a common cause of crepitation during joint movement. Osteoarthritis is characterized by the breakdown of cartilage in the joints, leading to friction between bones and resulting in crepitus. This condition is often associated with aging, repetitive stress on the joints, or underlying joint abnormalities.
Choice D Reason:
Needle aspiration of the synovial space is incorrect. Needle aspiration of the synovial space is a procedure performed to remove excess fluid or to obtain a sample of synovial fluid for diagnostic purposes. While this procedure may be performed for various reasons, it is not directly associated with crepitation in the knee joint.
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