Which type of cell is responsible for producing antibodies in the immune system?

A. B lymphocytes

B. T lymphocytes

C. Macrophages

D. Neutrophils

Correct Answer: A
Rationale: The correct answer is A: B lymphocytes. B lymphocytes (B cells) are a crucial part of the adaptive immune system. They produce antibodies, which are proteins that specifically target and neutralize pathogens such as bacteria and viruses. T lymphocytes (choice B) are involved in cell-mediated immunity rather than antibody production. Macrophages (choice C) are phagocytic cells that engulf and digest pathogens but do not produce antibodies. Neutrophils (choice D) are a type of white blood cell that primarily function in the innate immune response by phagocytosing pathogens.

The nurse is preparing to provide wound care for a client. Which step should be done first?

• A. Don procedural gloves
• B. Remove the dressing
• C. Apply prescribed medications to the wound
• D. Don a pair of sterile gloves

Correct Answer: A
Rationale: The correct answer is to don procedural gloves first. Donning procedural gloves is essential to protect the nurse from contaminants while removing the old dressing. This step helps maintain aseptic technique and prevents the transfer of microorganisms. Removing the dressing (choice B) should follow after wearing gloves to prevent the spread of pathogens. Applying prescribed medications (choice C) should be done after the wound is cleaned and dressed. Donning a pair of sterile gloves (choice D) is not necessary for initial wound care; procedural gloves are sufficient for standard wound care.

The nurse and unlicensed assistive personnel (UAP) are providing care for a client who exhibits signs of neglect syndrome following a stroke affecting the right hemisphere. What action should the nurse implement?

• A. Demonstrate to the UAP how to approach the client from the client's left side
• B. Ask the UAP to leave the room and assess the client's body for bruising
• C. Carefully observe the interaction between the client and family members
• D. Instruct the UAP to protect the client's left side when transferring to a chair

Correct Answer: A
Rationale: The correct action for the nurse to implement is to demonstrate to the UAP how to approach the client from the client's left side. Approaching the client from the neglected side (left side) can help in retraining the brain and improving awareness of the affected side, which is crucial in the management of neglect syndrome. Choice B is incorrect as assessing the client's body for bruising is not directly related to managing neglect syndrome. Choice C is incorrect as observing the interaction between the client and family members does not address the specific intervention needed for neglect syndrome. Choice D is incorrect because protecting the client's left side when transferring to a chair does not actively involve retraining the brain and improving awareness of the neglected side, which is the primary goal in managing neglect syndrome.

What is the best thing to say to a patient scheduled for cataract surgery who is concerned that the physician works on the correct eye?

• A. You are wearing an ID bracelet that will let the medical team know which eye to work on.
• B. When you are taken to the surgery area, the medical staff will confirm which eye needs the surgery.
• C. The surgeon will mark the correct eye before the cataract surgery based on your medical records.
• D. You will wear an ID bracelet, and the nurse will verify the eye scheduled for surgery by comparing it with your records and marking it with a permanent marker.

Correct Answer: D
Rationale: The best response reassures the patient by explaining the process of verifying and marking the correct eye, a safety measure to prevent wrong-site surgery, directly addressing the patient’s concern. Choice A is close but implies the ID bracelet alone determines the correct eye, missing the verification process. Choice B talks about confirmation but lacks details about marking the correct eye. Choice C mentions the surgeon's record but does not specify the direct verification and marking process, unlike Choice D.

During a clinic visit for a sore throat, a client's basal metabolic panel reveals a serum potassium of 3.0 mEq/L. Which intervention should the PN recommend to the client based on this finding?

• A. Increase intake of dried peaches and apricots
• B. Reduce intake of red meats
• C. Encourage use of a soft toothbrush
• D. Force fluid intake to 1500 mL daily

Correct Answer: A
Rationale: The correct answer is to recommend increasing the intake of dried peaches and apricots. A serum potassium level of 3.0 mEq/L is considered low. Increasing the intake of potassium-rich foods can help raise the serum potassium level, preventing complications such as muscle weakness and cardiac arrhythmias. Choice B, reducing intake of red meats, is incorrect because red meats are not specifically related to potassium levels. Choice C, encouraging the use of a soft toothbrush, is unrelated to addressing low potassium levels. Choice D, forcing fluid intake to 1500 mL daily, is not the appropriate intervention for low serum potassium; instead, increasing potassium-rich foods is more beneficial.