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. What is the primary focus of postoperative nursing care for the client with colon trauma?
- A. Monitoring for elevated coagulation studies
- B. Observation for and prevention of fistulas
- C. Monitoring for signs of hyponatremia
- D. Observation for and prevention of infection
Correct answer: D
Rationale: The correct answer is D: Observation for and prevention of infection. Postoperative nursing care for a client with colon trauma primarily focuses on preventing infections. Clients with colon trauma are at high risk for infections due to the disruption of the intestinal barrier. Monitoring for signs of infection, maintaining proper wound care, administering antibiotics as prescribed, and implementing strict aseptic techniques are essential in preventing postoperative infections. Choices A, B, and C are incorrect because elevated coagulation studies, fistulas, and hyponatremia are not the primary concerns in the immediate postoperative period for a client with colon trauma.
3. Which client requires careful nursing assessment for signs and symptoms of hypomagnesemia?
- A. A young adult client with intractable vomiting from food poisoning
- B. A client who developed hyperparathyroidism in late adolescence
- C. A middle-aged male client in renal failure following an unsuccessful kidney transplant
- D. A female client who is overzealous with her intake of simple carbohydrates
Correct answer: A
Rationale: The correct answer is A. Vomiting can lead to significant loss of magnesium, causing hypomagnesemia. In this scenario, the young adult client with intractable vomiting from food poisoning is at higher risk of developing hypomagnesemia due to the loss of magnesium through vomiting. Choices B, C, and D are less likely to present with hypomagnesemia. Hyperparathyroidism (B) is associated with hypercalcemia, renal failure (C) can lead to hypermagnesemia, and overconsumption of simple carbohydrates (D) is not directly linked to magnesium imbalances.
4. Two days after an abdominal hysterectomy, an elderly female with diabetes has a syncopal episode. The nurse determines that her vital signs are within normal limits, but her blood sugar is 325 mg/dL or 18.04 mmol/L (SI). What intervention should the nurse implement first?
- A. Administer regular insulin per sliding scale
- B. Cancel the client's dinner tray
- C. Give the client 4 ounces (120 mL) of orange juice
- D. Administer the next scheduled dose of metformin
Correct answer: A
Rationale: In this case, the nurse should implement the intervention of administering regular insulin per sliding scale. High blood sugar levels, as indicated by a reading of 325 mg/dL, require insulin administration to prevent complications such as hyperglycemia. Canceling the client's dinner tray (choice B) would not address the immediate need to lower the blood sugar level. Giving the client orange juice (choice C) might further increase the blood sugar level as it contains sugar. Administering the next scheduled dose of metformin (choice D) is not appropriate as metformin is not typically used for acute management of high blood sugar levels.
5. What information is most important for the nurse to provide to an adolescent female prescribed azithromycin for lower lobe pneumonia and recurrent chlamydia?
- A. Ensure the partner is screened for chlamydia
- B. Report any signs of liver dysfunction immediately
- C. Avoid consuming grapefruit juice while on this medication
- D. Use two forms of contraception while taking this drug
Correct answer: D
Rationale: The most important information for the nurse to provide to an adolescent female prescribed azithromycin for lower lobe pneumonia and recurrent chlamydia is to use two forms of contraception while taking this drug. Azithromycin can reduce the effectiveness of hormonal contraceptives, increasing the risk of pregnancy. It is crucial to convey this information to prevent unintended pregnancies. Option A is incorrect as the partner should be screened for chlamydia, not HIV, in this case. Option B is not the most important information to provide as liver dysfunction is a rare side effect of azithromycin. Option C is irrelevant as grapefruit juice does not interact with azithromycin. Therefore, the priority information to convey is the importance of using dual contraception to prevent pregnancy.
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