NCLEX-RN
NCLEX RN Exam Preview Answers
1. The healthcare professional is preparing to use a stethoscope for auscultation. Which statement is true regarding the diaphragm of the stethoscope?
- A. Used to listen for high-pitched sounds
- B. Used to listen for low-pitched sounds
- C. Should be firmly held against the person's skin to block out low-pitched sounds
- D. Should be lightly held against the person's skin to listen for extra heart sounds and murmurs
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. A leukemia patient has a relative who wants to donate blood for transfusion. Which of the following donor medical conditions would prevent this?
- A. A history of hepatitis C five years previously
- B. Cholecystitis requiring cholecystectomy one year previously
- C. Asymptomatic diverticulosis
- D. Crohn's disease in remission
Correct answer: A
Rationale: A history of hepatitis C five years previously would prevent a donor from donating blood for transfusion. Hepatitis C is a viral infection transmitted through bodily fluids, such as blood, causing inflammation of the liver. Patients with hepatitis C may not donate blood for transfusion due to the high risk of infection in the recipient. Cholecystitis requiring cholecystectomy one year previously, asymptomatic diverticulosis, and Crohn's disease in remission are not contraindications for blood donation as they do not pose a risk of transmitting infections to the recipient.
3. During an examination, a nurse notices a draining ulceration on a patient's lower leg. What is the most appropriate action in this situation?
- A. Wash hands and then contact the physician.
- B. Continue to examine the ulceration and then wash hands.
- C. Wash hands, put on gloves, and continue with the examination of the ulceration.
- D. Wash hands, proceed with the rest of the physical examination, and perform the examination of the leg ulceration last.
Correct answer: C
Rationale: In this scenario, the most appropriate action is to wash hands, put on gloves, and then continue examining the ulceration. Wearing gloves is crucial when there is a possibility of contact with body fluids, as in the case of a draining ulceration. Contacting the physician is not necessary at this point; the immediate focus should be on proper infection control by washing hands and wearing gloves. Changing the order of the examination is not recommended as it is important to follow a systematic approach to avoid missing any crucial assessments.
4. The healthcare professional is preparing to measure the length, weight, chest, and head circumference of a 6-month-old infant. Which measurement technique is correct?
- A. Measuring the infant's length using a tape measure
- B. Weighing the infant on an electronic standing scale
- C. Measuring the chest circumference at the nipple line with a tape measure
- D. Measuring the head circumference by wrapping the tape measure around the head
Correct answer: C
Rationale: For accurate measurements, specific techniques are required for different parameters in infants. Measuring the chest circumference involves encircling the chest at the nipple line. Length should be measured on a horizontal measuring board. Weight should be measured using a platform-type balance scale. Head circumference measurement entails ensuring the tape is aligned at the eyebrows and prominent frontal and occipital bones for the widest span. Therefore, the correct technique for measuring the chest circumference is at the nipple line with a tape measure. The other options are incorrect because length should be measured on a horizontal board, weight should be measured on a balance scale, and head circumference should be measured around the head, not over the nose and cheekbones.
5. The abbreviation pc is defined as ________________.
- A. before the meal
- B. with the meal
- C. after the meal
- D. post corpi
Correct answer: C
Rationale: The correct answer is C: 'after the meal.' In medical terminology, 'pc' is an abbreviation for 'post cibum,' which means 'after eating' or 'after the meal.' This term is used to indicate when a medication should be taken concerning meals. Choices A, B, and D are incorrect. 'Before the meal' (A) is typically abbreviated as 'ac,' 'with the meal' (B) is abbreviated as 'pc,' and 'post corpi' (D) is not a valid medical abbreviation or term.
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