NCLEX-RN
NCLEX RN Exam Review Answers
1. The parent of an infant diagnosed with gastroesophageal reflux disease is receiving feeding instructions from the nurse. Which instruction should the nurse give to the parent to assist in reducing the episodes of emesis?
- A. Provide smaller, more frequent feedings.
- B. Burp the infant frequently during feedings.
- C. Thin the feedings by adding water to the formula.
- D. Thicken the feedings by adding rice cereal to the formula.
Correct answer: D
Rationale: Gastroesophageal reflux disease involves the backward flow of gastric contents into the esophagus due to sphincter issues. To reduce episodes of emesis, it is recommended to thicken feedings by adding rice cereal to the formula. This helps to weigh down the contents in the stomach, making regurgitation less likely. Providing smaller, more frequent feedings and burping the infant frequently are beneficial strategies for gastroesophageal reflux. However, in this case, thickening the feedings is the most appropriate intervention. Thinning the feedings by adding water to the formula is not recommended as it can decrease the caloric density of the formula and may not help in reducing reflux.
2. While working with an obese adolescent, it is important for the nurse to recognize that obesity in adolescents is most often associated with what other behavior?
- A. Sexual promiscuity
- B. Poor body image
- C. Dropping out of school
- D. Drug experimentation
Correct answer: B
Rationale: When addressing obesity in adolescents, it is crucial to consider that poor body image is a common behavior associated with obesity. As adolescents gain weight, they may experience a decrease in self-esteem and a negative perception of their body. This can contribute to a cycle of unhealthy behaviors and impact their overall well-being. The other choices are less commonly associated with obesity in adolescents. Sexual promiscuity may be influenced by various factors unrelated to obesity, dropping out of school is more often linked to academic challenges or social issues, and drug experimentation can stem from a range of influences but is not directly correlated with obesity.
3. When assessing the respiratory system of an older patient, which finding indicates that the nurse should take immediate action?
- A. Weak cough effort
- B. Barrel-shaped chest
- C. Dry mucous membranes
- D. Bilateral crackles at lung bases
Correct answer: D
Rationale: Bilateral crackles at lung bases indicate a potential acute issue like heart failure. Immediate action is necessary in this situation. The nurse should conduct further assessments such as oxygen saturation and inform the healthcare provider promptly. A barrel-shaped chest and hyperresonance to percussion are typical signs of aging and do not require immediate action. A weak cough effort is common in older patients due to age-related changes, and dry mucous membranes are also expected in older individuals. While these findings may warrant further evaluation, they do not demand immediate action like bilateral crackles at lung bases.
4. Administration of hepatitis B vaccine to a healthy 18-year-old patient has been effective when a specimen of the patient's blood reveals
- A. HBsAg.
- B. anti-HBs
- C. anti-HBc IgG
- D. anti-HBc IgM.
Correct answer: B
Rationale: The correct answer is 'anti-HBs'. The presence of surface antibody to HBV (anti-HBs) indicates a successful response to the hepatitis B vaccine. Anti-HBs is a marker of immunity and protection against hepatitis B infection. Choices A, C, and D are incorrect because: A) HBsAg indicates current infection with hepatitis B virus, C) anti-HBc IgG suggests past infection or immunity, and D) anti-HBc IgM is a marker of acute hepatitis B infection.
5. A diabetic patient's arterial blood gas (ABG) results are pH 7.28; PaCO2 34 mm Hg; PaO2 85 mm Hg; HCO3 18 mEq/L. The nurse would expect which finding?
- A. Intercostal retractions
- B. Kussmaul respirations
- C. Low oxygen saturation (SpO2)
- D. Decreased venous O2 pressure
Correct answer: B
Rationale: Kussmaul respirations (deep and rapid) are a compensatory mechanism for metabolic acidosis. The low pH and low bicarbonate levels indicate metabolic acidosis. Intercostal retractions, low oxygen saturation, and decreased venous O2 pressure are not associated with acidosis. Intercostal retractions typically occur in respiratory distress, while low oxygen saturation and decreased venous O2 pressure are more related to respiratory or circulatory issues, not metabolic acidosis.
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