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. An older adult who recently began self-administration of insulin calls the nurse daily to review the steps that should be taken when giving an injection. The nurse has assessed the client's skills during two previous office visits and knows that the client is capable of giving the daily injection. Which response by the nurse is likely to be most helpful in encouraging the client to assume total responsibility for the daily injections?
- A. I know you are capable of giving yourself the insulin.
- B. Giving yourself the injection seems to make you nervous.
- C. When I watched you give yourself the injection, you did it correctly.
- D. Tell me what you want me to do to help you give yourself the injection at home.
Correct answer: C
Rationale: Choice C is the correct answer because focusing on the client's demonstrated ability to self-administer the injection is likely to reinforce his level of competence without sounding punitive. By acknowledging the client's correct performance during the self-injection, the nurse can boost the client's confidence, encouraging him to assume total responsibility for the daily injections. Choices A, B, and D do not directly highlight the client's competence in self-administration, which may not be as effective in promoting independent self-care.
3. Warm compresses are ordered for an open wound. Which action is appropriate for the nurse?
- A. Use sterile technique when applying the compresses.
- B. Leave the compresses on the area continuously, pouring warm solution on the area when it cools down.
- C. Alternate warm compresses with cold compresses.
- D. Apply a wet dressing and cover it with a dry dressing.
Correct answer: A
Rationale: Using sterile technique when applying the compresses is crucial to prevent infection and promote wound healing. Ensuring a clean environment during wound care reduces the risk of introducing pathogens that can lead to complications. Proper infection control measures play a significant role in the healing process of open wounds. Choice B is incorrect because leaving the compresses on continuously can lead to skin damage or thermal injury. Choice C is incorrect as alternating warm compresses with cold compresses is not appropriate for an open wound. Choice D is incorrect as applying a wet dressing without following specific orders can be detrimental to wound healing.
4. What type of technique should the nurse observe when preparing to insert an indwelling catheter?
- A. Clean technique.
- B. Medical Asepsis.
- C. Isolation Protocol.
- D. Sterile Technique.
Correct answer: D
Rationale: When inserting an indwelling catheter, the nurse must observe sterile technique to minimize the risk of infections. Sterile technique involves using sterile equipment and maintaining a sterile field to prevent introducing pathogens into the urinary tract.
5. When measuring vital signs, the healthcare provider observes that a client is using accessory neck muscles during respirations. What follow-up action should the healthcare provider take first?
- A. Determine pulse pressure
- B. Auscultate heart sounds
- C. Measure oxygen saturation
- D. Check for neck vein distention
Correct answer: C
Rationale: Observing a client using accessory neck muscles during respiration indicates respiratory distress. The priority action should be to measure oxygen saturation to assess the adequacy of oxygenation. This intervention provides crucial information about the client's respiratory status and helps guide further assessment and interventions.
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