the nurse is preparing to use a stethoscope for auscultation which statement is true regarding the diaphragm of the stethoscope
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Nursing Elites

NCLEX-RN

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1. The healthcare professional is preparing to use a stethoscope for auscultation. Which statement is true regarding the diaphragm of the stethoscope?

Correct answer: A

Rationale: The diaphragm of the stethoscope is designed for listening to high-pitched sounds like breath, bowel, and normal heart sounds. It should be firmly held against the person's skin to ensure optimal sound transmission, leaving a ring after use. On the other hand, the bell of the stethoscope is ideal for detecting soft, low-pitched sounds such as extra heart sounds or murmurs. Therefore, the diaphragm is not used to block out low-pitched sounds but rather to enhance the detection of high-frequency sounds.

2. In which situation would the nurse use bimanual palpation technique?

Correct answer: B

Rationale: Bimanual palpation involves using both hands to envelop or capture specific body parts or organs like the kidneys, uterus, or adnexa. This technique is particularly useful for assessing the size, shape, consistency, and mobility of deep organs like the kidneys and uterus. Palpating the thorax of an infant (Choice A) is usually done with a different technique like gentle, single-handed palpation. Assessing pulsations and vibrations (Choice C) and assessing tenderness and pain (Choice D) typically do not require the use of bimanual palpation, making Choices A, C, and D incorrect.

3. Which of the following is the most likely cause of constipation in a client?

Correct answer: A

Rationale: The correct answer is to postpone bowel movement when the urge to defecate occurs. Clients who delay bowel movements by ignoring the urge to defecate or not evacuating promptly, such as in situations where they are not near a bathroom, are at higher risk of developing constipation. This behavior leads to a decrease in bowel movement frequency, slowed intestinal motility, and increased fecal water absorption, resulting in hard, dry stools that are difficult to pass. Intestinal infection (choice B), antibiotic use (choice C), and food allergies (choice D) are less likely to be direct causes of constipation compared to postponing bowel movements.

4. Which of the following statements best describes substance P?

Correct answer: D

Rationale: Substance P is a neurotransmitter found in the brain and the dorsal horn of the spinal column, not just in the brain. It is associated with pain transmission and modulation. Substance P is known to cause inflammation, edema, and pain. While it plays a role in pain perception, it does not decrease a client's sensitivity to pain (Choice A), nor are its levels typically drawn before administering narcotic analgesics (Choice B). Although substance P is involved in pain control, it is not responsible for managing depression (Choice C). Therefore, the correct statement is that substance P is found in the dorsal horn of the spinal column.

5. When cleansing the genital area during perineal care, the nurse should _____________.

Correct answer: B

Rationale: During perineal care, when cleansing the genital area of an uncircumcised male patient, it is crucial to retract the foreskin to clean the area underneath. This helps in the removal of smegma, a substance that can accumulate and lead to bacterial growth and infection if not cleaned properly. The foreskin should then be replaced back to its original position after cleaning to ensure proper hygiene and prevent any potential complications. Choices A, C, and D are incorrect because they do not address the specific care required for an uncircumcised penis, which involves retracting and replacing the foreskin.

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