Correct Answer: B

Rationale: To administer 35 mg of celtazidime from a 100 mg/ml solution, the nurse should give 0.4 ml of the reconstituted celtazidime solution. The calculation is 35 mg / 100 mg/ml = 0.35 ml, but since the vial is 500 mg, the answer is 0.35 ml * (500 mg / 100 mg) = 0.4 ml. Therefore, choices A, C, and D are incorrect as they do not reflect the correct calculation based on the provided information.

Correct Answer: B

Rationale: Prothrombin time (PT) is the most important laboratory value to monitor for clients on warfarin therapy. PT helps determine how long it takes blood to clot and ensures the warfarin dose is within the therapeutic range to prevent either excessive bleeding or clotting. Monitoring platelet count is important for assessing the risk of bleeding, but PT is more specific to warfarin therapy. Creatinine level and BUN are indicators of kidney function and are not directly related to warfarin therapy.

Correct Answer: B

Rationale: The correct answer is to check the client's blood glucose level. This is the priority action when dealing with a client admitted with hyperglycemia. Checking the blood glucose level helps determine the severity of hyperglycemia and guides further treatment. Administering insulin or fluids or monitoring intake and output are important interventions but should come after assessing the blood glucose level to inform the most appropriate course of action.

Correct Answer: B

Rationale: The correct answer is to obtain a 12-lead electrocardiogram (ECG). This action is crucial in assessing the heart's electrical activity and helps in the evaluation of chest pain. Administering nitroglycerin (Choice A) may be necessary but should come after obtaining the ECG to confirm the diagnosis. Checking vital signs (Choice C) is important but does not provide direct information about the heart's electrical status. Placing the client on continuous telemetry (Choice D) may be appropriate later but does not provide immediate information on the heart's electrical activity as an ECG does.

Correct Answer: B

Rationale: The correct answer is B. Pale mucous membranes, such as those of the eyelids and lips, are a classic sign of anemia in infants. Anemia leads to decreased oxygen-carrying capacity, resulting in tissue hypoxia, which can manifest as pale mucosa. Choice A, a hemoglobin level of 12 g/dL, is within the normal range for a 10-month-old infant and would not necessarily indicate anemia. Choice C, hypoactivity, is a non-specific finding and can be present in various conditions, not specifically anemia. Choice D, a heart rate between 140 to 160, is within the normal range for an infant and is not a specific finding associated with anemia.