The nurse is reviewing the parts of the complete blood count and differential with a patient. Where should the nurse state that neutrophils, eosinophils, and basophils are produced?

Correct Answer: D

Rationale: The correct answer is D: Red bone marrow. Neutrophils, eosinophils, and basophils are all types of white blood cells that are produced in the red bone marrow through a process called hematopoiesis. The red bone marrow is a primary site for the production of blood cells, including these specific types of white blood cells. Neutrophils are important for fighting bacterial infections, eosinophils are involved in allergic reactions and parasitic infections, and basophils play a role in allergic responses. Therefore, it is crucial for the nurse to inform the patient that these cells are produced in the red bone marrow. The other choices (A: Spleen, B: Thymus, C: Lymph nodes) are incorrect as these organs do not play a primary role in the production of these specific types of white blood cells.

Correct Answer: D

Rationale: The correct answer is D: 4 hours. Blood products typically have a maximum hang time of 4 hours to prevent bacterial contamination and ensure the integrity of the product. Beyond 4 hours, the risk of bacterial growth and contamination increases, leading to potential harm for the patient. Therefore, it is crucial to adhere to this time limit to maintain the safety and effectiveness of the blood product. Summary: - A (1 hour), B (2 hours), and C (3 hours) are incorrect because they do not align with the standard maximum hang time for blood products, which is 4 hours. Adhering to this time limit is essential to prevent deterioration and ensure patient safety.

Correct Answer: C

Rationale: The correct answer is C: 7.38. Normal blood pH ranges from 7.35 to 7.45. A pH of 7.38 falls within this range, indicating a slightly alkaline (basic) pH, which is considered normal. Choices A, B, and D are all outside the normal range, indicating acidosis (A and B) or alkalosis (D). Therefore, C is the correct answer as it falls within the normal blood pH range.

Correct Answer: A

Rationale: Rationale: A 0.9% normal saline solution is the correct choice for blood transfusion because it is isotonic, which closely matches the osmolarity of blood. This helps prevent hemolysis and maintains the integrity of red blood cells during transfusion. Other choices such as B (dextrose 5% and water), C (dextrose 5% and 0.9% normal saline), and D (dextrose 5% and 0.45% normal saline) are incorrect because they do not provide the necessary isotonic environment for safe blood transfusion, risking hemolysis or other complications.

Correct Answer: D

Rationale: The correct answer is D because a low WBC count of 2800/L indicates leukopenia, which can compromise the immune system in older adults, leading to increased susceptibility to infections. This finding is concerning as it can pose serious health risks. A: A hematocrit of 35% is within the normal range for older adults and not a cause for concern. B: A hemoglobin level of 11.8 g/dL is slightly lower but still within an acceptable range for older adults and unlikely to be a major concern. C: A platelet count of 400000/L is within the normal range and would not be a significant worry for the nurse. In summary, a low WBC count can indicate a weakened immune system, making it the most concerning finding among the choices given.