A nursing student is preforming a head-to-toe assessment on his patient with a history of mitral regurgitation. Instead of hearing normal heart sounds the student hears a murmur.
Which of the following best describes the sound of a heart murmur?
Lub-dub sounds
Gentle blowing or swooshing noise
Scratchy, leathery heart noise
Abrupt, high-pitched snapping noise
The Correct Answer is B
A. Lub-dub sounds:
This describes the normal heart sounds, with the "lub" representing the closing of the mitral and tricuspid valves (S1) and the "dub" representing the closing of the aortic and pulmonic valves (S2). This is the typical and expected sound of a healthy heart.
B. Gentle blowing or swooshing noise:
This describes the characteristic sound of a heart murmur. Murmurs are abnormal sounds caused by turbulent blood flow, and they are often described as a gentle blowing or swooshing noise heard between the normal heart sounds.
C. Scratchy, leathery heart noise:
This description is not typical for heart sounds or murmurs. Heart sounds are usually described in terms of tones, clicks, or swooshing rather than scratchy or leathery.
D. Abrupt, high-pitched snapping noise:
This description is not typical for heart sounds or murmurs. Heart murmurs are generally characterized by a more continuous, blowing, or swooshing quality, rather than abrupt, high-pitched snapping noises.
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Related Questions
Correct Answer is D
Explanation
A. Wheezes:
Wheezes are high-pitched, musical sounds that occur during inspiration or expiration and are often associated with narrowed airways, such as in conditions like asthma or chronic obstructive pulmonary disease (COPD).
B. Stridor:
Stridor is a high-pitched, crowing sound that is typically heard during inspiration and can be associated with upper airway obstruction, such as in croup or epiglottitis.
C. Rhonchi:
Rhonchi are low-pitched, snoring or rattling sounds that can occur during inspiration or expiration. They are often associated with the presence of mucus or other airway obstruction and can be heard in conditions like bronchitis or pneumonia.
D. Crackles:
Crackles are bubbling, popping sounds heard during inspiration or expiration. They can be further classified as fine or coarse. Fine crackles are often associated with conditions like pulmonary fibrosis, while coarse crackles can be heard in conditions like congestive heart failure or pneumonia.
Correct Answer is ["2"]
Explanation
To administer the ordered dose of digoxin, you need to calculate how many tablets of the available strength are equivalent to 0.25 mg. You can use the formula:
Ordered dose / Available dose = Number of tablets
Plugging in the values, you get:
0.25 mg / 0.125 mg = 2 tablets
Therefore, you need to administer two tablets of digoxin 0.125 mg to give the ordered dose of 0.25 mg.
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