Correct Answer: B

Rationale: The correct action for the nurse to take when finding the radiation implant in the bed is to use long-handled forceps to place the implant in a lead container. This procedure is crucial in reducing radiation exposure to both the patient and healthcare providers. Calling radiation therapy for assistance (Choice A) may delay the immediate need for safe handling of the implant. Leaving the implant in the bed and notifying the provider (Choice C) is unsafe and can lead to increased radiation exposure. Disposing of the implant in a sharps container (Choice D) is incorrect as the implant should be placed in a lead container, not a sharps container, to contain the radiation.

Correct Answer: B

Rationale: The correct answer is B: Partial thromboplastin time (PTT). PTT is the lab value used to monitor the effectiveness of heparin therapy in clients with DVT. It measures the intrinsic pathway of coagulation and is prolonged by heparin therapy. Prothrombin time (PT) and International Normalized Ratio (INR) are primarily used to monitor warfarin therapy, not heparin. Checking hemoglobin and hematocrit levels is important but does not directly assess the effectiveness of heparin therapy in DVT.

Correct Answer: B

Rationale: The correct first action when a 6-year-old child steps on a rusty nail is to instruct the parent about tetanus boosters. This is important because stepping on a rusty nail increases the risk of tetanus infection. Choice A is incorrect as cleansing the foot comes after addressing the tetanus risk. Choice C is not the first action and should be done after addressing the immediate risk of tetanus. Choice D is not necessary as the priority is to prevent tetanus infection.

Correct Answer: D

Rationale: A serum calcium level of 7.5 mg/dL is indicative of hypocalcemia, a common complication in clients with chronic kidney disease due to impaired calcium absorption and metabolism. Hypercalcemia (Choice A) is the opposite of the condition presented in the question and is characterized by elevated serum calcium levels. Hyperkalemia (Choice B) is an increased potassium level, not related to the client's serum calcium level. Hyponatremia (Choice C) is a decreased sodium level and is also not related to the client's serum calcium level.

Correct Answer: B

Rationale: The correct answer is to position the child sitting up and leaning forward. This position helps prevent blood from flowing down the throat, reducing the risk of choking or vomiting. Choice A is incorrect because lying flat can cause blood to flow down the throat. Choice C is wrong as tilting the head back may lead to blood entering the throat. Choice D is also incorrect as applying ice is not recommended for nosebleeds and lying on the side may not prevent blood from flowing down the throat.