a common error when taking a pulse is

NCLEX-RN

NCLEX RN Actual Exam Test Bank

1. What is a common error when taking a pulse?

A. Placing the index finger on the radial artery located on the thumb side of a patient's wrist.
B. Noting a pulse as 'weak' when the pulsation disappears upon adding pressure.
C. Counting the pulse for 15 seconds and multiplying the number by four.
D. None of the above will cause errors.

Correct answer: C

Rationale: The correct answer is counting the pulse for 15 seconds and multiplying the number by four. To accurately assess a patient's heart rate or pulse, it is crucial to count the pulse for a full minute. Counting for only 15 seconds and then multiplying by four may result in an inaccurate heart rate calculation. This approach could miss arrhythmias or intermittent pulsations that could be vital indicators of the patient's condition. Placing the index finger on the radial artery, which is located on the thumb side of the patient's wrist, is the correct technique for taking a pulse. Noting a pulse as 'weak' when the pulsation disappears upon adding pressure is a valid observation and not an error in itself. Therefore, the most common error in this scenario is incorrectly calculating the pulse rate by multiplying a 15-second count by four.

2. During a class on the aspects of culture, the instructor shares that culture has four basic characteristics. Which statement correctly reflects one of the characteristics of culture?

A. Static and unchanging
B. Members sharing similar physical characteristics
C. Members sharing a common geographic origin and religion
D. Adapted to specific conditions related to environmental and technical factors

Correct answer: D

Rationale: Culture has four basic characteristics, one of which is that it is adapted to specific conditions related to environmental and technical factors and to the availability of natural resources. The other three characteristics are: (1) learned from birth through the processes of language acquisition and socialization; (2) shared by all members of the cultural group; and (3) dynamic and ever-changing. Culture is not static and unchanging but is dynamic and ever-changing. Members of a culture do not necessarily share similar physical characteristics; that refers to race. Similarly, members of a culture do not necessarily share a common geographic origin and religion; that refers to ethnicity.

3. All of the following factors may contribute to client falls EXCEPT:

A. Contact dermatitis
B. Urinary frequency
C. Decreased visual acuity
D. Confusion

Correct answer: A

Rationale: Client falls can result from various factors, both intrinsic and extrinsic. Intrinsic factors include health conditions like urinary frequency, which increases the need for bathroom visits, decreased visual acuity, and confusion. These factors can directly contribute to an increased risk of falls. However, contact dermatitis does not directly lead to falls. Contact dermatitis is a skin condition caused by contact with irritants or allergens and does not inherently predispose individuals to falling. Therefore, among the given options, contact dermatitis is the only factor that is not directly associated with an increased risk of falls.

4. The nurse is assessing an 80-year-old male patient. Which assessment finding would be considered normal?

A. Decrease in body weight from his younger years
B. Decrease in deposits of fat in the cheeks and forearms
C. Presence of kyphosis and flexion in bilateral knees and hips
D. Change in overall body proportion, including a longer trunk and shorter extremities

Correct answer: C

Rationale: In an 80-year-old male patient, the presence of kyphosis (rounded upper back) and flexion in bilateral knees and hips are considered normal age-related changes. These postural changes are commonly seen in older adults due to structural changes in the spine and joints. Option A is incorrect as aging individuals typically experience a decrease in body weight, not an increase. Option B is also incorrect as there is usually a decrease in subcutaneous fat from the face and periphery, rather than an increase in fat deposits in specific areas. Option D is incorrect because the change in overall body proportion with aging usually involves a shorter trunk and relatively longer extremities, not the other way around. This is because long bones do not shorten with age, leading to this characteristic change in body proportions.

5. The healthcare professional notices that a colleague is preparing to check the blood pressure of a patient who is obese by using a standard-sized blood pressure cuff. How would this likely affect the blood pressure reading?

A. Yield a falsely low blood pressure
B. Yield a falsely high blood pressure
C. Be the same, regardless of cuff size
D. Vary as a result of the technique of the person performing the assessment

Correct answer: B

Rationale: Using a cuff that is too narrow for an obese patient would likely yield a falsely high blood pressure reading. This occurs because the standard cuff is too small for the arm's circumference, requiring more pressure to compress the artery. A tight cuff can lead to inaccurate and elevated blood pressure readings. Choices A, C, and D are incorrect because using an improperly sized cuff would not yield a falsely low blood pressure, the blood pressure reading does vary with cuff size, and the technique of the person performing the assessment is not the primary factor affecting the reading in this situation.