HESI RN
HESI Fundamentals
1. The healthcare provider attaches a pulse oximeter to a client's fingers and obtains an oxygen saturation reading of 91%. Which assessment finding most likely contributes to this reading?
- A. BP 142/88 mmHg
- B. 2+ edema of fingers and hands
- C. Radial pulse volume is +3
- D. Capillary refill time is 2 seconds
Correct answer: B
Rationale: Edema in the fingers and hands can impede the proper functioning of the pulse oximeter, leading to a falsely low oxygen saturation reading. Edema alters the transmission of light through the tissues, affecting the accuracy of the measurement. Therefore, the presence of edema in the fingers and hands is the most likely factor contributing to the low oxygen saturation reading of 91%.
2. When making the bed of a client who needs a bed cradle, which action should the nurse include?
- A. Teach the client to call for help before getting out of bed.
- B. Keep both the upper and lower side rails in a raised position.
- C. Keep the bed in the lowest position while changing the sheets.
- D. Drape the top sheet and covers loosely over the bed cradle.
Correct answer: D
Rationale: A bed cradle is used to keep the top bedclothes off the client, so the nurse should drape the top sheet and covers loosely over the cradle. This helps in maintaining the proper positioning and function of the bed cradle to ensure the client's comfort and safety during bed making.
3. 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.
4. Which instruction should be included in the discharge teaching plan for an adult client with hypernatremia?
- A. Monitor daily urine output volume
- B. Drink plenty of water whenever thirsty
- C. Use salt tablets for sodium content
- D. Review food labels for sodium content
Correct answer: D
Rationale: In hypernatremia, there is an excess of sodium in the blood. Reviewing food labels for sodium content is crucial as it helps the client identify and avoid high-sodium foods, which can contribute to elevated sodium levels. Monitoring urine output volume may be important for other conditions but is not directly related to managing hypernatremia. Drinking water whenever thirsty is generally good advice for staying hydrated but does not specifically address the issue of high sodium levels. Using salt tablets would worsen hypernatremia by further increasing sodium intake.
5. A healthcare professional is teaching a new colleague about the correct administration of subcutaneous (subQ) injections. Which instruction should the healthcare professional include?
- A. Insert the needle at a 90-degree angle for subQ injections
- B. Aspirate for blood return before injecting the medication
- C. Pinch the skin before inserting the needle
- D. Massage the site after administering the injection
Correct answer: C
Rationale: Pinching the skin before inserting the needle is essential in elevating the subcutaneous tissue away from the muscle. This technique ensures that the medication is administered into the correct tissue layer, promoting proper absorption and decreasing the risk of injecting into muscle tissue.
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