which of the following is an example of a positive effect of exercise on a client

NCLEX-RN

NCLEX RN Exam Prep

1. Which of the following is an example of a positive effect of exercise on a client?

A. Decreased basal metabolic rate
B. Decreased venous return
C. Decreased work of breathing
D. Decreased gastric motility

Correct answer: C

Rationale: The correct answer is 'Decreased work of breathing.' Exercise has numerous positive effects on clients, such as increasing metabolic rate, improving gastric motility, and enhancing venous return. When a client exercises regularly, their work of breathing decreases, meaning that everyday activities require less exertion. This is beneficial as it indicates improved cardiovascular and respiratory efficiency. Choices A, B, and D are incorrect because a decreased basal metabolic rate, decreased venous return, and decreased gastric motility are not typically considered positive effects of exercise. Instead, an increased basal metabolic rate, improved venous return, and optimal gastric motility are desired outcomes associated with physical activity.

2. A patient's nursing diagnosis is Insomnia. The desired outcome is: 'Patient will sleep for a minimum of 5 hours nightly by October 31.' On November 1, a review of the sleep data shows the patient sleeps an average of 4 hours nightly and takes a 2-hour afternoon nap. Which evaluation should be documented?

A. Consistently demonstrated
B. Often demonstrated
C. Sometimes demonstrated
D. Never demonstrated

Correct answer: D

Rationale: The correct answer is 'Never demonstrated.' Despite the patient sleeping a total of 6 hours daily, it is not achieved in one uninterrupted session at night as per the desired outcome. The patient's habit of taking a 2-hour afternoon nap also affects the evaluation. Therefore, the outcome should be evaluated as 'Never demonstrated.' Choice A, 'Consistently demonstrated,' is incorrect because the desired outcome of sleeping for a minimum of 5 hours nightly in one session is not met. Choice B, 'Often demonstrated,' is incorrect as the patient's sleep pattern does not consistently align with the desired outcome. Choice C, 'Sometimes demonstrated,' is also incorrect as the patient's sleep pattern does not meet the specific criteria set in the desired outcome.

3. What type of blood pressure measurement error is most likely to occur if the nurse does not check for the presence of an auscultatory gap?

A. Diastolic blood pressure may not be heard.
B. Diastolic blood pressure may be falsely low.
C. Systolic blood pressure may be falsely low.
D. Systolic blood pressure may be falsely high.

Correct answer: C

Rationale: If an auscultatory gap is undetected, a falsely low systolic reading may occur. This gap can lead to an underestimation of the systolic blood pressure, causing potential misinterpretation of the patient's condition. The diastolic blood pressure may not be heard due to the gap, but the critical issue in this scenario is the risk of underestimating systolic blood pressure, which can impact clinical decision-making. Choices B, C, and D are incorrect because the key concern in this context is the potential for a falsely low systolic blood pressure reading when an auscultatory gap is not assessed.

4. A 4-month-old child is at the clinic for a well-baby checkup and immunizations. Which of these actions is most appropriate when the nurse is assessing an infant's vital signs?

A. The infant's radial pulse should be palpated, and the nurse should notice any fluctuations resulting from activity or exercise.
B. The nurse should auscultate an apical rate for 1 minute and then assess for any normal irregularities, such as sinus dysrhythmia.
C. The infant's blood pressure should be assessed by using a stethoscope with a large diaphragm piece to hear the soft muffled Korotkoff sounds.
D. The infant's chest should be observed and the respiratory rate counted for 1 minute; the respiratory pattern may vary significantly.

Correct answer: B

Rationale: The nurse auscultates an apical rate, not a radial pulse, with infants and toddlers. The pulse should be counted by listening to the heart for 1 full minute to account for normal irregularities, such as sinus dysrhythmia. Children younger than 3 years of age have such small arm vessels; consequently, hearing Korotkoff sounds with a stethoscope is difficult. The nurse should use either an electronic blood pressure device that uses oscillometry or a Doppler ultrasound device to amplify the sounds. An infant's respiratory rate should be assessed by observing the infant's abdomen, not chest, because an infant's respirations are normally more diaphragmatic than thoracic. The nurse should auscultate an apical heart rate, not palpate a radial pulse, with infants and toddlers.

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

A. Postponing bowel movement when the urge to defecate occurs
B. Intestinal infection
C. Antibiotic use
D. Food allergies

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.