Nursing Elites

1. Which of the following hormones helps to raise the blood sugar level to help maintain homeostasis?

• A. Antidiuretic hormone (ADH)
• B. Insulin
• C. Glucagon
• D. Thyroxine

Correct answer: C

Rationale: The correct answer is C, Glucagon. Glucagon helps raise blood sugar levels by stimulating the liver to release stored glucose into the bloodstream, thus aiding in maintaining homeostasis. Antidiuretic hormone (ADH), choice A, functions in regulating water balance in the body, not blood sugar levels. Insulin, choice B, lowers blood sugar levels by facilitating glucose uptake by cells. Thyroxine, choice D, is a hormone produced by the thyroid gland that regulates metabolism and has no direct effect on blood sugar levels.

2. Which of the following mediates humoral immunity?

• A. Natural killer cells
• B. T cells
• C. B cells
• D. Neutrophils

Correct answer: C

Rationale: Humoral immunity is mediated by B cells, not natural killer cells, T cells, or neutrophils. B cells are responsible for producing antibodies, which are essential components of humoral immunity.

3. An immunology nurse is caring for a patient. While planning care, which principle will the nurse remember? The primary role of IgA1 is to prevent infections in the:

• A. Blood
• B. Kidneys
• C. Lungs
• D. Mucous membranes

Correct answer: A

Rationale: The correct answer is A: Blood. IgA1 is mainly found in the blood and plays a crucial role in preventing infections by neutralizing pathogens. While IgA1 can be present in other body areas, its primary function is associated with preventing infections in the blood. Choices B, C, and D are incorrect as IgA1 is not primarily associated with the kidneys, lungs, or mucous membranes.

4. Which of the following disorders is more likely associated with blood in stool?

• A. Gastroesophageal reflux
• B. Crohn's disease
• C. Irritable bowel syndrome
• D. Colon cancer

Correct answer: D

Rationale: Colon cancer is more likely associated with blood in stool due to the presence of bleeding from the tumor in the colon. Gastroesophageal reflux (Choice A) typically presents with heartburn and regurgitation but not blood in stool. Crohn's disease (Choice B) can cause gastrointestinal symptoms, but bloody stools are more commonly associated with ulcerative colitis. Irritable bowel syndrome (Choice C) is characterized by abdominal pain, bloating, and changes in bowel habits, but it does not typically cause blood in stool. Therefore, the correct answer is D, Colon cancer.

5. What instruction should the nurse include in this patient's health education regarding chloroquine phosphate (Aralen) for malaria prophylaxis?

• A. “Take your pill on the same day each week.”
• B. “Watch out for any unusual rash on your trunk and arms, but this isn't cause for concern.”
• C. “Remember to take your chloroquine on an empty stomach.”
• D. “We'll provide you with enough syringes and teach you how to inject the drug.”

Correct answer: A

Rationale: The correct instruction for the nurse to include in this patient's health education regarding chloroquine phosphate (Aralen) for malaria prophylaxis is to “Take your pill on the same day each week.” This is essential because chloroquine is typically taken once a week on the same day to ensure consistent protection against malaria. Choice B is incorrect because while rashes are a possible side effect of chloroquine, they are not a usual occurrence and should be reported to the healthcare provider. Choice C is incorrect because chloroquine does not need to be taken on an empty stomach. Choice D is incorrect as chloroquine is typically administered orally, not by injection.

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