The 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)
A friction rub
The fourth heart sound (S4)
A split second heart sound S2
The Correct Answer is A
A. The third heart sound (S3):
The third heart sound (S3) is an abnormal heart sound that occurs during early diastole, immediately after S2 (the second heart sound). It is caused by the rapid filling of the ventricles and is often associated with conditions like heart failure. In heart failure, the ventricles become stiff, causing vibrations that produce the S3 sound.
B. A friction rub:
A friction rub is a high-pitched, scratchy sound heard during both systole and diastole. It is caused by the rubbing together of inflamed pericardial layers (pericarditis) and is usually heard best at the left lower sternal border. Friction rubs can indicate pericardial inflammation and are often heard in conditions such as pericarditis or after a myocardial infarction.
C. The fourth heart sound (S4):
The fourth heart sound (S4) occurs late in diastole, just before S1, and is caused by atrial contraction. It is associated with increased resistance to ventricular filling, often due to conditions like hypertension or aortic stenosis. The S4 sound is heard as a low-pitched "atrial gallop."
D. A split second heart sound S2:
The second heart sound (S2) represents the closure of the aortic and pulmonic valves. Normally, S2 has two components: A2 (aortic valve closure) and P2 (pulmonic valve closure). A split S2 occurs when A2 and P2 do not close simultaneously. A physiological split S2 is common during inspiration and occurs due to delayed closure of the pulmonic valve. An abnormal or fixed split S2 can indicate underlying heart conditions such as atrial septal defect (ASD) or right bundle branch block (RBBB).
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","B","C","D","E"]
Explanation
A. Use of accessory muscles
Explanation: Using accessory muscles during breathing indicates increased effort to breathe, which can be a sign of respiratory distress. It suggests that the client is having difficulty breathing and is using additional muscles to aid in the process. This finding should be reported to the practitioner for further evaluation.
B. Nail bed greater than 160 degrees
Explanation: A nail bed angle greater than 160 degrees, also known as clubbing, is an abnormal finding and can be associated with chronic respiratory or cardiovascular conditions. It may indicate insufficient oxygenation and should be reported to the practitioner for evaluation.
C. Circumoral cyanosis
Explanation: Circumoral cyanosis, which is a bluish discoloration around the mouth, indicates inadequate oxygenation. It can be a sign of respiratory or cardiac problems and should be reported to the practitioner for further assessment and intervention.
D. Pursed lip breathing
Explanation: Pursed lip breathing is a technique often used by individuals with respiratory difficulties to improve oxygen exchange. However, if it's observed in a person who does not normally use this technique, it could indicate respiratory distress and should be reported to the practitioner for evaluation.
E. Anteroposterior-to-transverse diameter of 1:1
Explanation: An anteroposterior-to-transverse diameter of 1:1 (also known as barrel chest) is an abnormal finding often associated with chronic obstructive pulmonary disease (COPD). It suggests overinflation of the lungs and can impair effective breathing. This finding should be reported to the practitioner for further evaluation.
Correct Answer is B
Explanation
A. Simultaneously palpating both arteries to compare amplitude: While comparing amplitudes is important, using the diaphragm of the stethoscope to listen for bruits (abnormal whooshing sounds indicating turbulent blood flow) is a more specific and accurate method for assessing the carotid arteries for potential vascular issues.
B. Listening with the diaphragm of the stethoscope to assess for bruits: This technique allows the nurse to detect abnormal sounds (bruits) that could indicate partial blockages or stenosis in the carotid arteries, suggesting a risk of stroke or transient ischemic attack.
C. Instructing the patient to take slow deep breaths during auscultation: Deep breaths are more relevant during lung auscultation. Carotid artery assessment focuses on detecting abnormal sounds and assessing blood flow rather than respiratory patterns.
D. Palpating the artery at the base of the neck: Palpation alone does not provide enough information about potential blockages or abnormalities in the carotid arteries. Listening with a stethoscope allows for a more detailed assessment of blood flow and the presence of bruits.f the nurse hears a bruit during auscultation, they shouldnotpalpate the carotid artery. A bruit suggests partial obstruction (carotid stenosis), and compressing the artery further could worsen blood flow.
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