Correct Answer: C

Rationale: The correct answer is C: Memory cells. After recovery from a disease, memory cells are formed as part of the adaptive immune response. These memory cells "remember" the pathogen and can mount a quicker and stronger immune response upon re-exposure. This results in immunity to the disease. Antigens (choice A) are substances that trigger the immune response but do not provide immunity on their own. Complement (choice B) is a group of proteins that enhance the immune response but do not directly lead to immunity. Natural killer cells (choice D) are part of the innate immune system and are not responsible for the specific memory response needed for immunity.

Correct Answer: A

Rationale: The correct answer is A because the Nursing Interventions Classification (NIC) system is not designed to help medical students determine the cost of care. The NIC system focuses on standardizing and categorizing nursing interventions to improve communication, documentation, and patient care. Choice B is incorrect because it correctly identifies one of the benefits of using the NIC system - enhancing communication among nurses. Choice C is incorrect because it suggests a valid use of the NIC system for organizing orientation and explaining nursing interventions. Choice D is incorrect because it accurately states that the NIC system can improve documentation in the electronic health record, which is one of its purposes.

Correct Answer: A

Rationale: The correct answer is A: Yearly after age 40. This recommendation aligns with the American Cancer Society guidelines that suggest women should start getting annual mammograms at age 40. This age is important as it is when the risk of breast cancer increases. Yearly screenings help in early detection and better treatment outcomes. The other choices (B, C, D) are incorrect because they do not follow the ACS guidelines. Option B is incorrect as it does not specify an age for starting mammograms. Option C is incorrect as it suggests starting after the first menstrual period, which might be too early. Option D is incorrect as it recommends screenings every 3 years between ages 20 and 40, which is not in line with the ACS recommendation for yearly screenings after age 40.

Correct Answer: C

Rationale: Rationale for Correct Answer (C): 1. Paraplegia is a condition where both lower extremities are paralyzed. 2. The prefix "para-" means alongside or beside, indicating that both legs are affected. 3. The nurse would explain to the family that Mr. Gubatan has paralysis in his lower extremities only. 4. This aligns with the medical definition of paraplegia. Summary of Incorrect Choices: A. Upper extremities being paralyzed is not indicative of paraplegia, as paraplegia specifically refers to lower extremity paralysis. B. Both lower and upper extremities being paralyzed is suggestive of quadriplegia, not paraplegia. D. One side of the body being paralyzed describes hemiplegia, not paraplegia.

Correct Answer: C

Rationale: The correct answer is C: ABG. Monitoring ABG in Guillain-Barre Syndrome patients is crucial as they are at risk for respiratory complications like respiratory failure due to muscle weakness. ABG provides information on oxygenation, ventilation, and acid-base balance. Regular monitoring helps detect early signs of respiratory distress and guide appropriate interventions. A: BUN and creatinine are important for assessing renal function, but they do not directly relate to acute complications in Guillain-Barre Syndrome. B: Hgb and Hct are markers for anemia, which is not a common acute complication in Guillain-Barre Syndrome. D: Serum potassium levels are important, but ABG monitoring takes precedence in patients with Guillain-Barre Syndrome due to the risk of respiratory issues.