HESI RN
HESI Fundamentals Practice Exam
1. The client is being taught how to perform active range of motion (ROM) exercises. To exercise the hinge joints, which action should the client be instructed to perform?
- A. Tilt the pelvis forwards and backwards
- B. Bend the arm by flexing the ulnar to the humerus
- C. Turn the head to the right and left
- D. Extend the arm at the side and rotate it in circles
Correct answer: B
Rationale: Hinge joints, like the elbow, primarily allow movement in one direction, in this case, bending the arm. The correct action to exercise hinge joints is to bend the arm by flexing the ulnar to the humerus. This movement specifically targets the hinge joint and promotes its range of motion. Choices A, C, and D involve movements that do not specifically target hinge joints. Tilt the pelvis involves the ball-and-socket joints of the hip, turning the head involves the pivot joint of the neck, and extending the arm and rotating it in circles involve multiple joints including ball-and-socket and pivot joints.
2. A client with a history of myocardial infarction (MI) is admitted with chest pain. Which laboratory test should the nurse expect to be ordered to determine if the client is experiencing another MI?
- A. Troponin
- B. Myoglobin
- C. CK-MB
- D. C-reactive protein
Correct answer: A
Rationale: Troponin is the most specific and sensitive laboratory test for detecting myocardial infarction (MI). It is released when there is damage to the heart muscle, making it a valuable marker for diagnosing another MI. Myoglobin and CK-MB can also be elevated in MI, but troponin is preferred due to its higher specificity. C-reactive protein is a marker of inflammation and not specific to MI.
3. 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%.
4. Which instruction is most important for the nurse to include when teaching a client with limited mobility strategies to prevent venous thrombosis?
- A. Perform cough and deep breathing exercises hourly.
- B. Turn from side to side in bed at least every 2 hours.
- C. Dorsiflex and plantarflex the feet 10 times each hour.
- D. Drink approximately 4 ounces of water every hour.
Correct answer: C
Rationale: The most crucial instruction for a client with limited mobility to prevent venous thrombosis is to perform dorsiflexion and plantarflexion of the feet 10 times each hour. These exercises help promote venous return, reducing the risk of thrombosis by preventing blood stasis in the lower extremities. While other measures like turning in bed and staying hydrated are beneficial, promoting venous return through foot exercises is the priority in preventing venous thrombosis in clients with limited mobility. Dorsiflexion and plantarflexion directly target the calf muscle pump, aiding in the circulation of blood back to the heart and preventing clot formation. The other options, such as cough and deep breathing exercises, turning in bed, and hydration, are important for overall health but do not directly address venous stasis and thrombosis prevention in the same way as foot exercises.
5. An older client who had abdominal surgery 3 days earlier was given a barbiturate for sleep and is now requesting to go to the bathroom. Which action should the nurse implement?
- A. Assist the client to walk to the bathroom and do not leave the client alone.
- B. Request that the UAP assist the client onto a bedpan.
- C. Ask if the client needs to have a bowel movement or void.
- D. Assess the client's bladder to determine if the client needs to urinate.
Correct answer: A
Rationale: Barbiturates cause central nervous system (CNS) depression, increasing the risk of falls. It is crucial for the nurse to assist the client to the bathroom to prevent potential injuries. Leaving the client alone may lead to accidents due to the effects of the medication. Monitoring and supporting the client during this activity is essential for ensuring safety and preventing falls.
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