The presence of anemia is characterized by a/an:

Correct Answer: C

Rationale: Step-by-step rationale: 1. Anemia is a condition where there is a decrease in the concentration of red blood cells. 2. Red blood cells carry oxygen to the body's tissues, so a decrease in their concentration leads to reduced oxygen delivery. 3. This decrease in red blood cell concentration can be measured through a decrease in hematocrit levels. 4. Choices A and B are incorrect because anemia involves a decrease, not an increase, in red blood cells and hemoglobin. 5. Choice D is incorrect as it mentions "decreased blood count cells," which is not a specific term related to anemia. Summary: The correct answer is C because anemia is characterized by a decrease in the concentration of red blood cells, leading to reduced oxygen delivery, while the other choices are incorrect due to inaccuracies in describing anemia.

Correct Answer: C

Rationale: The correct answer is C because administering antiemetic medications like metoclopramide and dexamethasone helps control nausea and vomiting post-chemotherapy. Metoclopramide acts on the gut to reduce nausea, while dexamethasone decreases inflammation and suppresses the vomiting reflex. Choice A focuses on dietary interventions but does not address the physiological cause of nausea. Choice B with breathing exercises may help some clients but does not directly address the nausea and vomiting. Choice D is incorrect as withholding fluids can lead to dehydration, which is not recommended after chemotherapy.

Correct Answer: C

Rationale: The correct answer is C because the patient expressing fear of going home and being alone indicates apprehension about discharge. This inference is supported by the subjective data provided. Choice A is incorrect as it assumes the patient's fear is related to dressing changes, not discharge. Choice B is incorrect as resuming medications is not linked to the patient's fear of being alone. Choice D is incorrect as there is no indication in the scenario that the surgery was unsuccessful.

Correct Answer: C

Rationale: The correct answer is C: Wear gloves for blood/body fluid contact. This is the most appropriate action for infection control when caring for a patient with AIDS because HIV is primarily transmitted through blood and certain body fluids. Wearing gloves when coming into contact with blood or body fluids reduces the risk of transmission. Explanation for why other choices are incorrect: A: Wearing gloves at all times may not be necessary and can lead to unnecessary waste of resources. B: Wearing gown and mask at all times is excessive and not indicated unless there is a risk of exposure to blood or body fluids. D: Wearing a mask during patient contact times is not necessary unless there is a risk of exposure to respiratory secretions.

Correct Answer: D

Rationale: The correct answer is D: pain in the scapular region. This is because a herniated nucleus pulposus at the C4-C5 and C5-C6 interspaces typically results in pain radiating from the neck to the scapular region due to nerve compression at those levels. The other choices are incorrect as constant, throbbing headaches are not typically associated with this specific diagnosis, clonus in the lower extremities is more indicative of lower spinal cord involvement, and numbness of the face is not a common symptom of herniated discs at these levels.

Correct Answer: C

Rationale: The correct answer is C: Fat. Excessive ingestion of fat has been linked to autoimmunity due to its potential to trigger inflammation in the body, which can disrupt the immune system's balance and lead to autoimmune responses. High-fat diets have been associated with increased production of pro-inflammatory molecules, impacting immune function negatively. Protein (choice A) is essential for immune function, vitamin A (choice B) supports immune responses, and zinc (choice D) is crucial for immune system regulation. However, excessive intake of these nutrients typically does not directly lead to autoimmunity like excessive fat consumption does.

Correct Answer: D

Rationale: The correct answer is D: Passive immunization. This involves administering pre-formed antibodies to provide immediate protection. In the case of a pregnant client needing temporary protection from chickenpox, passive immunization is necessary as it offers immediate immunity without stimulating the client's immune system. - A (Naturally acquired active immunization): This involves exposure to the pathogen and the body producing its antibodies, which takes time and is not suitable for immediate protection. - B (Artificially acquired passive immunization): This option doesn't involve providing pre-formed antibodies, which are needed for immediate protection. - C (Artificially acquired active immunization): This method requires time for the body to develop its immunity, not providing immediate protection as needed in this scenario.

Correct Answer: C

Rationale: The correct answer is C: 0.90% sodium chloride. When administering a hypotonic solution like 0.45% sodium chloride or 5% dextrose in water, water moves into the cells causing them to swell. This can exacerbate symptoms of hypovolemia such as low blood pressure and decreased perfusion. However, 0.90% sodium chloride is an isotonic solution and will not further exacerbate hypovolemic symptoms. Choices A, B, and D are hypotonic solutions that can worsen hypovolemic symptoms by causing cellular swelling.

Correct Answer: B

Rationale: The correct answer is B: Pallor. Pallor, which refers to paleness of the skin, is an early sign of anemia due to decreased red blood cell levels. Anemia causes reduced oxygen delivery to tissues, leading to paleness. Palpitations (A) may occur in anemia but are not an early sign. Glossitis (C) and weight loss (D) are not typically early signs of anemia and are more commonly associated with other health conditions.