HESI LPN
CAT Exam Practice
1. A client is admitted to the intensive care unit with diabetes insipidus due to a pituitary gland tumor. Which potential complication should the nurse monitor closely?
- A. Hypokalemia
- B. Ketonuria
- C. Peripheral edema
- D. Elevated blood pressure
Correct answer: A
Rationale: The correct answer is A: Hypokalemia. In diabetes insipidus, there is excessive urination leading to fluid loss, which can result in electrolyte imbalances such as hypokalemia. Monitoring potassium levels is crucial to prevent complications like cardiac arrhythmias. Choices B, C, and D are incorrect. Ketonuria is typically seen in diabetic ketoacidosis, peripheral edema is more commonly associated with conditions like heart failure or kidney disease, and elevated blood pressure is not a direct complication of diabetes insipidus related to a pituitary gland tumor.
2. The nurse is caring for a group of clients with the help of a practical nurse (PN). Which nursing actions should the nurse assign to the PN? (Select all that apply)
- A. Administer a dose of insulin per sliding scale for a client with type 2 diabetes mellitus (DM)
- B. Obtain postoperative vital signs for a client one day following unilateral knee arthroplasty
- C. Perform daily surgical dressing change for a client who had an abdominal hysterectomy
- D. Initiate patient-controlled analgesia (PCA) pumps for two clients immediately postoperative
Correct answer: B
Rationale: The correct answer is B. Obtaining postoperative vital signs for a client one day following unilateral knee arthroplasty is a task within the scope of practice for a practical nurse (PN) and contributes to the client's recovery. Administering insulin (Choice A) involves medication administration, which typically requires a higher level of nursing education. Performing daily surgical dressing changes (Choice C) after an abdominal hysterectomy involves wound care management that is usually beyond the scope of practice for a PN. Initiating patient-controlled analgesia pumps (Choice D) is a complex nursing intervention that requires specialized training and knowledge, exceeding the typical responsibilities of a PN.
3. The healthcare provider is evaluating a client for potential dehydration. Which assessment finding is most indicative of fluid volume deficit?
- A. Moist mucous membranes
- B. Increased urine output
- C. Decreased skin turgor
- D. Elevated blood pressure
Correct answer: C
Rationale: Corrected Rationale: Decreased skin turgor is a classic sign of dehydration. When someone is dehydrated, the skin loses its elasticity and becomes less turgid. This change is easily assessed by gently pinching and pulling up the skin on the back of the hand or forearm. If the skin remains elevated or tents rather than quickly returning to its normal position, it indicates dehydration. Moist mucous membranes (Choice A) are actually a sign of adequate hydration. Increased urine output (Choice B) can be a sign of dehydration, but decreased skin turgor is a more specific indicator. Elevated blood pressure (Choice D) is not typically associated with fluid volume deficit and may indicate other health issues.
4. While assessing a client four hours post-thoracentesis, the nurse is unable to auscultate breath sounds on the right side of the chest. What action should the nurse take first?
- A. Instruct the client to perform cough and deep breathing exercises
- B. Assess the client’s vital signs and respiratory effort
- C. Administer oxygen via nasal cannula according to the PNR protocol
- D. Document assessment findings in the client’s medical record
Correct answer: B
Rationale: The correct first action for the nurse to take in this situation is to assess the client’s vital signs and respiratory effort. It is crucial to promptly detect any immediate complications or changes in the client's condition. Instructing cough and deep breathing exercises (choice A) can be considered after further assessment. Administering oxygen (choice C) should be based on assessment findings and healthcare provider's orders. While documenting the findings (choice D) is essential, it should not be the first action when a potential issue with breath sounds is detected.
5. What should the nurse monitor for during the IV infusion of vasopressin (Pitressin) in a client with bleeding esophageal varices?
- A. Vasodilatation of the extremities
- B. Chest pain and dysrhythmia
- C. Hypotension and tachycardia
- D. Decreasing GI cramping and nausea
Correct answer: B
Rationale: During the IV infusion of vasopressin in a client with bleeding esophageal varices, the nurse should monitor for chest pain and dysrhythmia. Vasopressin is a vasoconstrictor that can cause cardiovascular effects, including chest pain and dysrhythmias. Options A, C, and D are incorrect as vasopressin is not expected to cause vasodilatation of the extremities, hypotension, tachycardia, or improvements in GI symptoms such as cramping and nausea.
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