what is the primary function of hemoglobin in red blood cells
Logo

Nursing Elites

HESI LPN

HESI PN Exit Exam 2023

1. What is the primary function of hemoglobin in red blood cells?

Correct answer: A

Rationale: The correct answer is A: Oxygen transport. Hemoglobin in red blood cells binds to oxygen in the lungs and carries it to tissues throughout the body, releasing it where needed. This process is essential for cellular respiration and energy production. Choices B, C, and D are incorrect because hemoglobin's primary function is not related to immunity, blood clotting, or carbon dioxide transport. Hemoglobin's main role is to transport oxygen, ensuring adequate oxygen supply to body tissues for metabolic processes.

2. A client post-coronary artery bypass graft (CABG) surgery is concerned about the risk of infection. What is the most important preventive measure the nurse should emphasize during discharge teaching?

Correct answer: D

Rationale: The correct answer is D: 'Keep the incision sites clean and dry.' After CABG surgery, maintaining the cleanliness and dryness of the incision sites is crucial to prevent infections. This practice reduces the risk of introducing harmful microorganisms to the surgical wound, promoting healing and preventing complications. Option A, while important, does not fully encompass the preventive measures necessary to avoid infections post-surgery. Option B is significant if antibiotics are prescribed, but ensuring cleanliness directly addresses infection prevention. Option C is reactive and focuses on addressing infection after it occurs, rather than proactively preventing it.

3. A client who is at full-term gestation is in active labor and complains of a cramp in her leg. Which intervention should the PN implement?

Correct answer: D

Rationale: During labor, muscle cramps are common due to prolonged muscle tension. The correct intervention to alleviate a cramp in the leg is to extend the leg and flex the foot. This action helps relieve the muscle spasm by stretching and contracting the muscles. Massaging the calf and foot (Choice A) may not be as effective in relieving the cramp as extending and flexing the leg. Elevating the leg above the heart (Choice B) is not necessary and may not directly address the cramp. Checking the pedal pulse (Choice C) is important for assessing circulation, but it does not directly address the muscle cramp.

4. The nurse is caring for an elderly female client who tells the nurse, 'When I sneeze, I wet my pants.' After discussing the client's complaint with the charge nurse, the nurse plans to reinforce teaching about the importance of Kegel exercises. What muscles are involved in these exercises?

Correct answer: D

Rationale: Kegel exercises involve the pelvic floor muscles. These muscles help strengthen the muscles controlling urination, potentially reducing symptoms of urinary incontinence. Pectoral muscles (Choice A), responsible for movement of the shoulders and arms, are not involved in Kegel exercises. Buttock muscles (Choice B) are primarily responsible for hip movement and stability, not related to Kegel exercises. Abdominal muscles (Choice C) support the core and trunk but are not the focus of Kegel exercises.

5. What is the priority intervention for a patient experiencing an acute asthma attack?

Correct answer: A

Rationale: Administering a bronchodilator is the priority intervention in an acute asthma attack. Bronchodilators help to quickly open the airways, relieve bronchospasm, and improve breathing. Encouraging the patient to drink fluids may be beneficial for other conditions but is not the priority in an acute asthma attack. Applying a high-flow oxygen mask may be necessary in severe cases of respiratory distress but is not the initial priority when managing an acute asthma attack. Performing chest physiotherapy is not indicated as the primary intervention for an acute asthma attack and may not address the immediate need to open the airways and improve breathing.

Similar Questions

A new mother who is breastfeeding her newborn for the first time after delivery reports nipple pain when the baby sucks. Based on this client problem, which action should the PN take?
During the immediate postoperative period following a total hip replacement, which intervention is most important for the nurse to implement?
What is the most appropriate nursing action when a patient on anticoagulant therapy develops sudden, severe back pain?
The practical nurse is caring for a client whose urine drug screen is positive for cocaine. Which behavior is this client likely to exhibit during cocaine withdrawal?
A client has a prescription for a transcutaneous electrical nerve stimulator (TENS) unit for pain management during the postoperative period following a lumbar laminectomy. Which information should the PN reinforce about the action of the adjuvant pain modality?

Access More Features

HESI LPN Basic
$69.99/ 30 days

  • 5,000 Questions with answers
  • All HESI courses Coverage
  • 30 days access

HESI LPN Premium
$149.99/ 90 days

  • 5,000 Questions with answers
  • All HESI courses Coverage
  • 30 days access

Other Courses