Nursing Elites

1. Which vitamin deficiency is most associated with night blindness?

• A. Vitamin A
• B. Vitamin B12
• C. Vitamin C
• D. Vitamin D

Correct answer: A

Rationale: The correct answer is Vitamin A. Vitamin A deficiency leads to night blindness because this vitamin is crucial for the formation of rhodopsin, a photopigment in the retina. Rhodopsin is essential for vision in low-light conditions. Vitamin B12 deficiency can lead to anemia and neurological issues but is not directly related to night blindness. Vitamin C deficiency can cause scurvy, affecting connective tissues, but not night vision. Vitamin D deficiency can lead to bone disorders but is not primarily associated with night blindness.

2. A client who is post-operative from a bowel resection is experiencing abdominal distention and pain. The nurse notices the client has not passed gas or had a bowel movement. What should the nurse assess first?

• A. The client's bowel sounds.
• B. The client's fluid intake.
• C. The client's pain level.
• D. The client's surgical incision.

Correct answer: A

Rationale: Assessing bowel sounds is crucial in this situation as it helps determine if the client's gastrointestinal tract is functioning properly. Absent or hypoactive bowel sounds can indicate an ileus, a common post-operative complication. Assessing fluid intake (Choice B) is important but should come after assessing bowel sounds. Pain assessment (Choice C) is essential but addressing the physiological issue should take precedence. Checking the surgical incision (Choice D) is relevant but not the priority when the client is experiencing abdominal distention and potential gastrointestinal complications.

3. 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.

4. During an inspection of a client's fingernails, the nurse notices a suspected abnormality in the shape and character of the nails. Which finding should the nurse document?

• A. Clubbed nails
• B. Splinter hemorrhages
• C. Longitudinal ridges
• D. Koilonychia or spoon nails

Correct answer: A

Rationale: Clubbed nails are a significant finding in clients with chronic hypoxia or lung disease. This abnormality is characterized by an increased curvature of the nails and softening of the nail bed. It can indicate underlying health conditions such as respiratory or cardiovascular issues. Splinter hemorrhages (B) are small areas of bleeding under the nails, typically associated with infective endocarditis. Longitudinal ridges (C) are often a normal age-related change in the nails. Koilonychia or spoon nails (D) present as a concave shape of the nails and are commonly seen in clients with iron deficiency anemia or hemochromatosis. Therefore, documenting clubbed nails is the most relevant abnormality to report and investigate further.

5. A client with uterine cancer asks the nurse, 'Which is the most common type of cancer in women?' The nurse replies that it is breast cancer. Which type of cancer causes the most deaths in women?

• A. Breast cancer
• B. Lung cancer
• C. Brain cancer
• D. Colon and rectal cancer

Correct answer: B

Rationale: Lung cancer is the leading cause of cancer-related deaths in women, surpassing even breast cancer. While breast cancer is more common, it is often detected early enough for effective treatment. Lung cancer, on the other hand, tends to be diagnosed at later stages, leading to higher mortality rates. Brain cancer and colon and rectal cancer are not the leading causes of cancer-related deaths in women, making them incorrect choices.

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