NCLEX-RN
NCLEX RN Exam Preview Answers
1. During an office visit, the healthcare provider is assessing a patient's skin. What part of the hand and technique would be used to best assess the patient's skin temperature?
- A. Fingertips
- B. Dorsal surface of the hand
- C. Ulnar portion of the hand
- D. Palmar surface of the hand
Correct answer: B
Rationale: The correct answer is the dorsal surface of the hand. The dorsa (backs) of the hands and fingers are best for determining temperature because the skin is thinner on the dorsal surfaces than on the palms. Fingertips are best for fine, tactile discrimination and not for assessing skin temperature. The ulnar and palmar surfaces of the hands are not as effective for assessing skin temperature as the dorsal surface because they have thicker skin layers.
2. 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.
3. The acronym FAST is used to help responders remember the steps to recognizing which of the following conditions?
- A. Onset of labor in a pregnant woman
- B. Stroke
- C. Heart attack
- D. Migraine
Correct answer: B
Rationale: The correct answer is B: Stroke. The acronym FAST is used to help recognize the signs of a stroke. The letters stand for Face, Arms, Speech, and Time. This mnemonic helps in identifying facial drooping, arm weakness, speech difficulties, and the importance of time in seeking emergency care. Choices A, C, and D are incorrect because the FAST acronym specifically pertains to stroke recognition, not the onset of labor, heart attacks, or migraines.
4. While auscultating heart sounds, the nurse hears a murmur. Which of these instruments would be used to assess this murmur?
- A. Electrocardiogram
- B. Bell of the stethoscope
- C. Diaphragm of the stethoscope
- D. Palpation with the nurse's palm of the hand
Correct answer: B
Rationale: The correct instrument to assess a murmur while auscultating heart sounds is the bell of the stethoscope. An electrocardiogram is used to measure the heart's electrical activity, not to assess murmurs. Palpation with the nurse's palm of the hand is a method to assess pulses or textures, not heart murmurs. The diaphragm of the stethoscope is typically used for high-pitched sounds like breath, bowel, and normal heart sounds, whereas the bell is more suitable for soft, low-pitched sounds such as murmurs or extra heart sounds.
5. Which of the following may represent an upper airway obstruction?
- A. Retractions
- B. Elongated expiratory phase
- C. Stridor
- D. Expiratory wheezing
Correct answer: C
Rationale: Stridor is the sound produced by turbulent airflow through a partially obstructed upper airway. It is a classic sign of upper airway obstruction. While an elongated expiratory phase may indicate lower airway obstruction, stridor specifically points to an upper airway issue. Retractions are also often seen in upper airway obstruction due to the increased effort of breathing. Expiratory wheezing, on the other hand, is more indicative of lower airway conditions such as asthma or chronic obstructive pulmonary disease (COPD).
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