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. A client is admitted with a stage four pressure ulcer that has a black, hardened surface and a light-pink wound bed with malodorous green drainage. Which dressing is best for the nurse to use first?
- A. Hydrogel dressing.
- B. Exudate absorber.
- C. Wet-to-moist dressing.
- D. Transparent adhesive film.
Correct answer: C
Rationale: The best initial dressing for a stage four pressure ulcer with necrotic tissue is a wet-to-moist dressing. This dressing helps to provide moisture, soften necrotic tissue, and prepare the wound bed for healing. It promotes autolytic debridement and can help manage malodorous drainage. Once the necrotic tissue is loosened, other advanced dressings like hydrogel or alginate may be used in the wound bed to facilitate healing.
3. The healthcare provider selects the best site for insertion of an IV catheter in the client's right arm. Which documentation should the healthcare provider use to identify placement of the IV access?
- A. Left brachial vein
- B. Right cephalic vein
- C. Dorsal side of the right wrist
- D. Right upper extremity
Correct answer: B
Rationale: The correct answer is B: Right cephalic vein. The cephalic vein is a large, superficial vein located on the radial side of the forearm, making it the preferred site for IV access. It is often the best choice for insertion of an IV catheter due to its accessibility and low risk of complications, such as infiltration. Documenting the use of the right cephalic vein for IV access is crucial for accurate and safe patient care. Choices A, C, and D are incorrect because the left brachial vein, the dorsal side of the right wrist, and the right upper extremity are not typically preferred sites for IV catheter insertion and may not provide optimal access or outcomes.
4. A client with a history of coronary artery disease (CAD) is admitted with chest pain. Which intervention should the nurse implement first?
- A. Administer sublingual nitroglycerin
- B. Obtain a 12-lead electrocardiogram (ECG)
- C. Apply oxygen via nasal cannula
- D. Initiate continuous cardiac monitoring
Correct answer: C
Rationale: In a client with a history of coronary artery disease (CAD) experiencing chest pain, the priority intervention for the nurse to implement first is to apply oxygen via nasal cannula. Oxygenation is crucial to ensure adequate oxygen supply to the tissues and the heart. This intervention takes precedence over administering sublingual nitroglycerin, obtaining an ECG, or initiating continuous cardiac monitoring. While these interventions are important, ensuring adequate oxygenation is the initial priority in the management of a client with chest pain.
5. When caring for a client with a chest tube, which intervention is most important?
- A. Keep the drainage system at chest level.
- B. Ensure that the chest tube is clamped at all times.
- C. Strip the chest tube every shift.
- D. Ensure that the chest tube is connected to a water-seal drainage system.
Correct answer: D
Rationale: The most crucial intervention when caring for a client with a chest tube is to ensure that the chest tube is connected to a water-seal drainage system (D). This system helps maintain proper lung expansion and prevents complications. Keeping the drainage system at chest level (A) is important to facilitate drainage, but not as critical as ensuring the connection to the drainage system. Clamping the chest tube (B) is unnecessary and can lead to serious issues. Stripping the chest tube (C) is an outdated practice and can cause harm rather than benefit.
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