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. During a clinic visit, the mother of a 7-year-old reports to the nurse that her child is often awake until midnight playing and is then very difficult to awaken in the morning for school. Which assessment data should the nurse obtain in response to the mother's report?
- A. The occurrence of any episodes of sleep apnea
- B. The child's blood pressure, pulse, and respirations
- C. Length of rapid eye movement (REM) sleep that the child is experiencing
- D. Description of the family's home environment
Correct answer: D
Rationale: In response to the mother's report, the nurse should assess the family's home environment first to identify any factors that may hinder the establishment of bedtime routines conducive to sleep. Factors such as noise, light, distractions, or other environmental aspects could be contributing to the child's difficulty falling asleep at a reasonable hour and waking up in the morning.
3. When preparing to insert an indwelling urinary catheter, the nurse applies sterile gloves and then tests the catheter balloon for patency. What action should the nurse implement next?
- A. Place a sterile drape under the client's buttocks.
- B. Instruct the client to inhale and then exhale slowly.
- C. Discard the gloves and apply new sterile gloves.
- D. Apply a sterile lubricant to the end of the catheter.
Correct answer: D
Rationale: After testing the catheter balloon for patency, the nurse should proceed to apply a sterile lubricant to the end of the catheter. This lubrication helps facilitate the insertion of the catheter smoothly. Placing a sterile drape under the client's buttocks should have been done prior to this step. Discarding the gloves and applying new sterile gloves is not necessary at this point in the procedure. Instructing the client to inhale and exhale slowly is not part of the immediate steps for inserting an indwelling urinary catheter.
4. What is the most important action for the nurse to take when caring for a client with a spinal cord injury experiencing autonomic dysreflexia?
- A. Elevate the head of the bed to 45 degrees.
- B. Monitor the client's respiratory rate.
- C. Administer an antihypertensive medication.
- D. Assess the client's blood glucose level.
Correct answer: A
Rationale: In a client with autonomic dysreflexia, the most critical action is to elevate the head of the bed to 45 degrees (A). This positioning helps reduce blood pressure, which is essential in managing autonomic dysreflexia. Monitoring the client's respiratory rate (B) is important for overall assessment but not the priority in this situation. Administering an antihypertensive medication (C) without addressing the positioning issue first can lead to further complications. Assessing the client's blood glucose level (D) is not directly related to autonomic dysreflexia and is not the initial priority in this scenario.
5. A client is admitted with a diagnosis of fluid volume deficit. Which clinical finding would the nurse expect?
- A. Bounding pulse
- B. Bradycardia
- C. Oliguria
- D. Dry mucous membranes
Correct answer: D
Rationale: Dry mucous membranes (D) are a common clinical finding indicating fluid volume deficit. In dehydration, there is insufficient fluid in the body, leading to dry mucous membranes due to decreased saliva production. Bounding pulse (A) is associated with fluid volume excess, not deficit. Bradycardia (B) and oliguria (C) are not typical clinical findings of fluid volume deficit but may be seen in fluid volume excess or other conditions.
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