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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["45"]
Explanation
To calculate the amount of potassium chloride (K-Dur) solution to administer, we need to use the following formula:
mL to administer = ordered dose (mEq) / available dose (mEq/mL) x mL
Plugging in the values from the question, we get:
mL to administer = 60 mEq / (20 mEq / 15 mL) x 15 mL
Simplifying the equation, we get:
mL to administer = 60 mEq x 15 mL / 20 mEq
mL to administer = 45 mL
Therefore, the nurse should administer 45 mL of potassium chloride (K-Dur) solution to the patient.
Correct Answer is C
Explanation
A. Skin fold:
This may not be the best choice in this situation because the skin fold might not provide an accurate reading, especially if the hands are edematous.
B. Toe:
While the toe is a common site for pulse oximetry, in a patient with bilateral lower leg amputations, it might not be the most practical option. The nurse might face challenges in securing the pulse oximeter probe on the toe, and the accuracy of the reading could be affected.
C. Earlobe:
This is often a suitable alternative site for pulse oximetry when peripheral perfusion is compromised in the extremities. In this case, with bilateral lower leg amputations and edematous hands, applying the pulse oximeter probe to the earlobe is a good choice.
D. Finger:
In a patient with edematous hands, the finger might not be the best choice as the edema could affect the accuracy of the measurement. Additionally, if the patient has lower leg amputations, using the earlobe or another alternative site may be more appropriate.
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