HESI RN
HESI Fundamentals
1. A client with a diagnosis of coronary artery disease is receiving atorvastatin (Lipitor). Which laboratory test should the nurse monitor to evaluate the effectiveness of this medication?
- A. Complete blood count (CBC)
- B. Serum potassium level
- C. Liver function tests (LFTs)
- D. Serum cholesterol level
Correct answer: C
Rationale: To evaluate the effectiveness of atorvastatin (Lipitor), the nurse should monitor liver function tests (LFTs) (C) because this medication can impact liver function. Complete blood count (CBC) (A), serum potassium level (B), and serum cholesterol level (D) are not directly indicative of the medication's effectiveness in managing coronary artery disease.
2. The healthcare provider is providing wound care to a client with a stage 3 pressure ulcer that has a large amount of eschar. The wound care prescription states 'clean the wound and then apply collagenase.' Collagenase is a debriding agent. The prescription does not specify a cleaning method. Which technique should the healthcare provider use to cleanse the pressure ulcer?
- A. Lightly coat the wound with povidone-iodine solution
- B. Irrigate the wound with sterile normal saline
- C. Flush the wound with sterile hydrogen peroxide
- D. Remove the eschar with a wet-to-dry dressing
Correct answer: B
Rationale: The correct technique to cleanse a wound when the prescription does not specify a cleaning method is to irrigate the wound with sterile normal saline. Sterile normal saline is the preferred solution for wound cleaning as it is gentle and does not damage healthy tissues. It helps in removing debris and maintaining a moist environment conducive to healing. Povidone-iodine solution and hydrogen peroxide can be harsh on tissues and delay wound healing. Removing eschar with a wet-to-dry dressing is a mechanical debridement method and should not be done without proper assessment and healthcare provider's order.
3. The client has removed the covering from an ice pack applied to his knee. What action should the nurse take first?
- A. Observe the appearance of the skin under the ice pack.
- B. Instruct the client regarding the importance of the covering.
- C. Reapply the covering after filling it with fresh ice.
- D. Ask the client how long the ice pack was applied to the skin.
Correct answer: A
Rationale: The primary action for the nurse is to assess the skin under the ice pack to check for any potential thermal injury. This assessment is crucial to ensure the client's safety. Once the skin assessment is done and no harm is found, the nurse can proceed with other necessary actions such as providing instructions to the client or replacing the covering with fresh ice.
4. A client with a diagnosis of anemia is receiving epoetin alfa (Epogen). Which laboratory test should the nurse monitor to evaluate the effectiveness of this medication?
- A. White blood cell count.
- B. Hemoglobin and hematocrit.
- C. Platelet count.
- D. Blood urea nitrogen (BUN) and creatinine.
Correct answer: B
Rationale: To evaluate the effectiveness of epoetin alfa (Epogen) in treating anemia, the nurse should monitor hemoglobin and hematocrit levels. These values indicate the oxygen-carrying capacity of the blood, which directly relates to the treatment of anemia. White blood cell count (A), platelet count (C), and blood urea nitrogen (BUN) and creatinine (D) are not specific indicators of the effectiveness of epoetin alfa in treating anemia.
5. Twenty minutes after beginning a heat application, the client states that the heating pad no longer feels warm enough. What is the best response by the nurse?
- A. That means you have derived the maximum benefit, and the heat can be removed.
- B. Your blood vessels are becoming dilated and removing the heat from the site.
- C. We will increase the temperature by 5 degrees when the pad no longer feels warm.
- D. The body's receptors adapt over time as they are exposed to heat.
Correct answer: D
Rationale: Choice (D) describes thermal adaptation, which occurs 20 to 30 minutes after heat application. The body's receptors adjust to the constant heat exposure, leading to a decreased sensation of warmth. Choices (A) and (B) provide inaccurate information regarding the situation, while choice (C) is not physiologically sound and could potentially harm the client by increasing the temperature unnecessarily.
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