HESI LPN
Fundamentals HESI
1. A client with a history of atrial fibrillation is receiving warfarin (Coumadin). Which laboratory value should the LPN/LVN monitor closely while the client is taking this medication?
- A. Blood glucose level
- B. Prothrombin time (PT) and INR
- C. Serum potassium level
- D. Serum creatinine level
Correct answer: B
Rationale: The LPN/LVN should closely monitor Prothrombin time (PT) and INR (Choice B) levels in a client receiving warfarin. These values are crucial to ensure the medication's effectiveness and prevent complications like bleeding. Monitoring blood glucose level (Choice A) is not directly relevant to warfarin therapy. While serum potassium level (Choice C) and serum creatinine level (Choice D) are important for other conditions or medications, they are not specifically required to be monitored when a client is on warfarin.
2. Which serum blood finding in diabetic ketoacidosis alerts the nurse that immediate action is required?
- A. pH below 7.3
- B. Potassium of 5.0
- C. HCT of 60
- D. PaO2 of 79%
Correct answer: C
Rationale: A hematocrit (HCT) of 60 indicates severe dehydration, a critical condition in diabetic ketoacidosis that requires immediate intervention. Severe dehydration can lead to hypovolemic shock and organ failure. While a low pH below 7.3 is indicative of acidosis, it may not require immediate action compared to severe dehydration. A potassium level of 5.0 is within the normal range and not a critical finding in this scenario. PaO2 of 79% reflects oxygenation status, which is important but not the most critical finding requiring immediate action in diabetic ketoacidosis.
3. A nurse is in a public building when someone cries out, 'Help! I think he is having a heart attack!' The nurse responds to the scene and finds the unconscious adult lying on the floor. Another bystander has obtained an AED. The nurse's first action, after ensuring someone has called for EMS, should be to:
- A. Administer cardiac compressions
- B. Attach the AED pads to the client
- C. Check for a pulse
- D. Perform rescue breaths
Correct answer: A
Rationale: In a scenario where a person is unconscious and there is an indication of a possible heart attack, the immediate priority for the nurse should be to administer cardiac compressions. This action helps maintain circulation and ensures oxygenated blood reaches vital organs until the AED is available. Checking for a pulse or performing rescue breaths may delay essential circulation support, and attaching AED pads should follow the initial step of administering compressions to maximize the chances of a successful resuscitation.
4. A client with a history of atrial fibrillation is prescribed warfarin (Coumadin). Which statement by the client indicates a need for further teaching?
- A. I will avoid foods high in vitamin K.
- B. I will take my medication at the same time every day.
- C. I will use a soft toothbrush to prevent gum bleeding.
- D. I can take aspirin if I have a headache.
Correct answer: D
Rationale: The correct answer is 'D: I can take aspirin if I have a headache.' This statement indicates a need for further teaching because aspirin can increase the risk of bleeding in clients taking warfarin. Clients on warfarin therapy should avoid taking aspirin or any other medications that can increase the risk of bleeding without consulting their healthcare provider. Choices A, B, and C are correct statements that demonstrate understanding of warfarin therapy and its potential side effects. Avoiding foods high in vitamin K helps maintain the effectiveness of warfarin, taking medication at the same time every day ensures consistent therapeutic levels, and using a soft toothbrush helps prevent gum bleeding, which can be a side effect of warfarin therapy.
5. A male Native American presents to the clinic with complaints of frequent abdominal cramping and nausea. He states that he has chronic constipation and had not had a bowel movement in five days, despite trying several home remedies. Which intervention is most important for the nurse to implement?
- A. Evaluate the stool samples for the presence of blood
- B. Assess for the presence of an impaction
- C. Determine which home remedies were used
- D. Obtain a list of prescribed medications
Correct answer: B
Rationale: Assessing for impaction is crucial as it is a common cause of constipation and abdominal discomfort. In this scenario, the patient's symptoms of chronic constipation and no bowel movement for five days despite trying home remedies indicate a potential impaction that needs to be assessed. Evaluating stool samples for blood, determining the home remedies used, or obtaining a list of prescribed medications, while potentially relevant, are not as urgent as assessing for impaction in this situation.
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