Nursing Elites

1. Which of the following white blood cells is the smallest and can be involved in humoral immunity?

• A. Lymphocyte
• B. Monocyte
• C. Basophil
• D. Erythrocyte

Correct answer: A

Rationale: The correct answer is 'Lymphocyte.' Lymphocytes are the smallest type of white blood cells and play a crucial role in humoral immunity by producing antibodies. Monocytes are actually the largest white blood cells and are involved in phagocytosis rather than humoral immunity. Basophils are a type of granulocyte involved in allergic reactions, and erythrocytes are red blood cells responsible for oxygen transport, not part of the immune system.

2. Which of these devices is considered a protective device, rather than a restraint?

• A. A mitten on the hands to prevent scratching
• B. A mitten on the hands to prevent the person from pulling their IV out
• C. A side rail to prevent the patient from falling
• D. A soft wrist restraint to prevent the patient from pulling their IV tubing

Correct answer: A

Rationale: A mitten on the hands to prevent scratching is considered a protective device because its primary purpose is to protect the patient from harming themselves by scratching. It does not restrict the patient's movement. Choice B, a mitten on the hands to prevent the person from pulling their IV out, is considered a restraint as it limits the patient's movement. Choice C, a side rail to prevent the patient from falling, is also a protective device as it aims to keep the patient safe by providing support and preventing falls. Choice D, a soft wrist restraint to prevent the patient from pulling their IV tubing, is a type of restraint as it restricts the patient's movement to prevent them from interfering with medical equipment.

3. Which of the following interventions is necessary before insertion of an arterial line into the radial artery?

• A. Ensure that the client does not need surgery
• B. Assess the client's grip strength
• C. Perform an Allen test
• D. Check a serum potassium level

Correct answer: C

Rationale: Before inserting an arterial line into the radial artery, it is crucial to perform an Allen test. The Allen test assesses the collateral circulation to the hand by compressing both the radial and ulnar arteries. By occluding the radial artery and releasing the ulnar artery, the nurse can check if the ulnar artery can adequately supply blood to the hand if the radial artery is cannulated. This step ensures that there is adequate circulation to the hand post-insertion of the arterial line. Choice A, ensuring that the client does not need surgery, is not directly related to the insertion of an arterial line and is not a necessary step before the procedure. Choice B, assessing grip strength, is not specific to the vascular status of the hand and does not provide information about the adequacy of collateral circulation. Choice D, checking a serum potassium level, is unrelated to the assessment of radial artery patency and collateral circulation, which are the primary concerns before arterial line insertion.

4. When escorting a patient to the operating room on a stretcher, what should you do to prevent the patient from falling?

• A. Ensure the safety belt or strap is secured on the patient while escorting them to the operating room
• B. Use a safety belt or strap on the patient throughout their escort to the operating room
• C. Lower the bed position when moving the patient from the bed to the stretcher
• D. All of the above options are correct

Correct answer: B

Rationale: When escorting a patient to the operating room on a stretcher, it is crucial to secure a safety belt or strap on the patient to prevent falls during the transfer. This safety measure is not considered a restraint but a necessary precaution. Lowering the bed position is not necessary; in fact, the bed should be in a high position to align with the stretcher. Locking the wheels of the stretcher is essential to prevent accidents during patient transfer. Therefore, the correct action to prevent falls while moving a patient to the operating room is to use a safety belt or strap on the patient throughout the escort.

5. How can the dangers associated with wandering in Alzheimer's disease patients be prevented?

• A. Bed alarms
• B. Chair alarms
• C. Door alarms
• D. All of the above

Correct answer: D

Rationale: The correct answer is 'All of the above.' Bed alarms, chair alarms, and door alarms are all effective measures to prevent the dangers associated with wandering in Alzheimer's disease patients. These alarms can alert caregivers when a patient tries to leave a designated area, helping to keep them safe. It is crucial to respond promptly to these alarms to ensure the patient's safety. Choices A, B, and C are incorrect individually as each type of alarm plays a vital role in a comprehensive wandering prevention strategy.

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