HESI LPN
HESI CAT Exam Test Bank
1. A client with intestinal obstructions has a nasogastric tube to low intermittent suction and is receiving an IV of lactated Ringer’s at 100 ml/H. Which finding is most important for the nurse to report to the healthcare provider?
- A. Gastric output of 900 mL in the last 24 hours
- B. Serum potassium level of 3.1 mEq/L or mmol/L (SI)
- C. Increased blood urea nitrogen (BUN)
- D. 24-hour intake at the current infusion rate
Correct answer: B
Rationale: The most crucial finding to report to the healthcare provider in this scenario is a serum potassium level of 3.1 mEq/L. Hypokalemia can lead to serious complications, including cardiac issues. Gastric output, increased BUN, and monitoring the 24-hour intake are essential but do not pose an immediate risk as hypokalemia does in this situation.
2. A 41-week gestation primigravida woman is admitted to labor and delivery for induction of labor. What finding should the nurse report to the healthcare provider before initiating the infusion of oxytocin?
- A. Fetal heart tones located in the upper right quadrant
- B. Biophysical profile results showing oligohydramnios
- C. Regular contractions occurring every 10 minutes
- D. Sterile vaginal exam revealing 3 cm dilation
Correct answer: B
Rationale: Oligohydramnios (low amniotic fluid) is a significant concern before starting oxytocin and should be reported to ensure safe labor induction. This finding can indicate potential fetal compromise and requires immediate evaluation. Fetal heart tones located in a specific quadrant, regular contractions, and cervical dilation are common assessments during labor but are not as critical as oligohydramnios in this scenario.
3. Four clients arrive on the labor and delivery unit at the same time. Which client should the nurse assess first?
- A. A 38-week primigravida who reports contractions occurring every 10 minutes
- B. A 39-week primigravida with a biophysical profile score of 5 out of 8
- C. A 41-week multigravida who is scheduled for induction of labor today
- D. A 36-week multigravida with a prescription for serial blood pressure
Correct answer: B
Rationale: The correct answer is B. A biophysical profile score of 5 out of 8 indicates potential fetal distress, necessitating immediate assessment to ensure the well-being of the fetus. The other options, while important, do not suggest an immediate threat to the fetus' health. The 38-week primigravida with contractions every 10 minutes may be in early labor, the 41-week multigravida scheduled for induction can be assessed after addressing the immediate concern, and the 36-week multigravida with serial blood pressure can be assessed after ensuring the client with potential fetal distress is stabilized.
4. For a client with pneumonia, the prescription states, “Oxygen at liters/min per nasal cannula PRN difficult breathing.” Which nursing intervention is effective in preventing oxygen toxicity?
- A. Avoiding the administration of oxygen at high levels for extended periods.
- B. Administering a sedative at bedtime to slow the client’s respiratory rate.
- C. Removing the nasal cannula during the night to prevent oxygen buildup.
- D. Running oxygen through a hydration source prior to administration.
Correct answer: A
Rationale: Choice A is the correct answer because prolonged exposure to high levels of oxygen can lead to oxygen toxicity. Administering oxygen at high levels for extended periods can overwhelm the body's natural defenses against high oxygen levels, causing toxicity. Choices B, C, and D are incorrect. Choice B is unrelated to preventing oxygen toxicity. Choice C is unsafe as removing the nasal cannula can deprive the client of necessary oxygen. Choice D, running oxygen through a hydration source, is not a standard practice for preventing oxygen toxicity.
5. Which instruction is most important for the client who receives a new prescription for risedronate sodium to treat osteoporosis?
- A. Remain upright for 30 minutes after taking the medication
- B. Increase intake of foods rich in vitamin D
- C. Begin a low-impact exercise routine
- D. Take the medication with a full glass of water
Correct answer: A
Rationale: The most important instruction for a client receiving risedronate sodium to treat osteoporosis is to remain upright for 30 minutes after taking the medication. Risedronate sodium can cause esophageal irritation, and staying upright helps prevent this side effect. While increasing vitamin D intake, starting a low-impact exercise routine, and taking the medication with a full glass of water are all beneficial for managing osteoporosis, the immediate need is to prevent esophageal irritation caused by risedronate sodium.
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