HESI LPN
HESI Mental Health Practice Questions
1. A client with schizophrenia is being treated with clozapine (Clozaril). What is the most important laboratory test for the LPN/LVN to monitor?
- A. White blood cell count.
- B. Liver function tests.
- C. Blood glucose levels.
- D. Platelet count.
Correct answer: A
Rationale: The most important laboratory test for an LPN/LVN to monitor for a client with schizophrenia being treated with clozapine is the white blood cell count. Clozapine treatment is associated with a risk of agranulocytosis, a severe drop in white blood cells, which can be life-threatening. Monitoring the white blood cell count regularly helps to detect this adverse effect early. Liver function tests (Choice B) are important to monitor with some antipsychotic medications but are not the most crucial for clozapine. Blood glucose levels (Choice C) are more relevant for monitoring in clients on medications like atypical antipsychotics that can cause metabolic side effects. Platelet count (Choice D) is not typically affected by clozapine therapy and is not the most important test to monitor in this case.
2. The LPN/LVN is caring for a client who has been prescribed lithium carbonate. What is the most important instruction for the nurse to provide?
- A. Take the medication with food to avoid stomach upset.
- B. Do not change your salt intake while on this medication.
- C. Drink plenty of water and maintain a consistent salt intake.
- D. Avoid excessive intake of caffeine while on this medication.
Correct answer: B
Rationale: The most important instruction for a client prescribed lithium carbonate is not to change their salt intake. Alterations in sodium levels can impact lithium levels, leading to an increased risk of toxicity. Choice A is not crucial for lithium carbonate administration. While hydration is essential, maintaining a consistent salt intake is more critical than just increasing water intake (Choice C). Although caffeine can interact with lithium, it is not as important as maintaining a consistent salt intake (Choice D).
3. The healthcare professional is preparing to administer an intramuscular injection to an adult client. Which site is most appropriate for the LPN/LVN to use?
- A. Deltoid muscle
- B. Ventrogluteal site
- C. Dorsogluteal site
- D. Rectus femoris site
Correct answer: B
Rationale: The ventrogluteal site is the most appropriate and safest site for administering an intramuscular injection to an adult client. It is preferred due to its thick muscle mass and fewer major blood vessels and nerves in the area, reducing the risk of injury or complications. The deltoid muscle is commonly used for vaccines and small-volume injections but may not be suitable for larger volumes. The dorsogluteal site has fallen out of favor due to the risk of injury to the sciatic nerve and other underlying structures. The rectus femoris site is not typically used for intramuscular injections in adults.
4. When caring for a client receiving warfarin sodium (Coumadin), which lab test would the nurse monitor to determine therapeutic response to the drug?
- A. Bleeding time
- B. Coagulation time
- C. Prothrombin time
- D. Partial thromboplastin time
Correct answer: C
Rationale: The correct answer is C: Prothrombin time (PT). Prothrombin time is monitored to assess the therapeutic response to warfarin therapy. Warfarin works by inhibiting vitamin K-dependent clotting factors, which prolongs the PT. Monitoring PT helps determine if the client's blood is clotting within the desired therapeutic range. Choices A, B, and D are incorrect because bleeding time, coagulation time, and partial thromboplastin time are not specifically used to monitor the therapeutic response to warfarin. Bleeding time assesses platelet function, coagulation time is a general term and not a specific test, and partial thromboplastin time is more relevant in monitoring heparin therapy, not warfarin.
5. A client with a history of stroke is prescribed warfarin. The nurse should monitor for which potential side effect?
- A. Bleeding
- B. Weight gain
- C. Headache
- D. Dizziness
Correct answer: A
Rationale: The correct answer is A: Bleeding. Warfarin is an anticoagulant medication that works by thinning the blood. One of the potential side effects of warfarin is an increased risk of bleeding. It is crucial for the nurse to monitor the client for signs of bleeding, such as unusual bruising, blood in the urine or stool, or prolonged bleeding from cuts or gums. Prompt recognition and management of bleeding are essential to prevent complications. Choices B, C, and D are incorrect as weight gain, headache, and dizziness are not common side effects of warfarin. Monitoring for bleeding is a priority due to the anticoagulant properties of warfarin.