each small square on the ekg paper is
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Nursing Elites

NCLEX-RN

NCLEX RN Predictor Exam

1. Each small square on the EKG paper is:

Correct answer: D

Rationale: Each small square on an EKG paper represents 0.04 seconds long and 1mm tall. This standardization is essential for accurate measurements. One large square on EKG paper consists of 5 small squares in length and 5 small squares in height, which equals 0.2 seconds long and 5mm tall (0.5 mV). Choice A is incorrect because while the duration is correct, the height mentioned is not accurate. Choice B is incorrect as it provides the correct height but the duration is inaccurate. Choice C is incorrect as the height mentioned is exaggerated, and the duration is correct but the height is not. Therefore, the correct answer is 0.04 seconds long and 1mm tall.

2. The nurse is preparing to assess a patient’s abdomen by palpation. How should the nurse proceed?

Correct answer: D

Rationale: The correct approach is to begin the assessment with light palpation to detect surface characteristics and to acclimate the patient to touch. This allows the nurse to first assess surface features before proceeding to deeper palpation. Starting with light palpation also helps the patient become more comfortable with being touched, creating a smoother examination experience. Palpating tender areas quickly, as suggested in choice B, can increase patient discomfort. Deep palpation, as in choice C, is typically performed after light palpation to avoid discomfort and ensure proper assessment. Avoiding palpation of tender areas first, as in choice A, helps prevent causing unnecessary pain and should be done towards the end of the assessment.

3. The nurse is conducting a health fair for older adults. Which statement is true regarding vital sign measurements in aging adults?

Correct answer: B

Rationale: Aging causes a decrease in vital capacity and decreased inspiratory reserve volume. As a result, the examiner may observe a shallower inspiratory phase and an increased respiratory rate in older adults. Contrary to common belief, the increased rigidity of arterial walls actually makes the pulse easier to palpate in aging adults. Pulse pressure is widened, not decreased, due to changes in systolic and diastolic blood pressures. Furthermore, changes in the body's temperature regulatory mechanism make older individuals less likely to develop a fever but more susceptible to hypothermia.

4. 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.

5. Which of the following interventions is most appropriate for a client with a diagnosis of Risk for Activity Intolerance?

Correct answer: C

Rationale: The most appropriate intervention for a client diagnosed with Risk for Activity Intolerance is to minimize environmental noise. Environmental noise can increase the energy demand on the client as they try to manage their responses to stimuli. By reducing excess noise, the nurse helps promote rest and conserves the client's energy, which is crucial in managing activity intolerance. Choice A is incorrect because increasing nursing activities may exacerbate the client's intolerance to activity. Choice B is incorrect as assessing for signs of increased muscle tone does not directly address the issue of activity intolerance. Choice D is incorrect as teaching the Valsalva maneuver is not relevant to managing activity intolerance in this scenario.

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