Correct Answer: A

Rationale: The correct answer is A because exercising the bitten extremity can increase the spread of the venom. Choice B is correct as poisonous snake bites typically leave two fang marks. Choice C is correct as immediate severe pain and swelling are common symptoms of a poisonous snake bite. Choice D is incorrect as a tourniquet should not be used for snake bites as it can lead to complications such as tissue damage and increased risk of infection.

Correct Answer: B

Rationale: The correct answer is B: Safety of the immediate environment. This is crucial for the client's well-being and can impact their health. The nurse should assess for hazards like loose rugs, clutter, or slippery floors. This ensures a safe living environment for the client. The other choices (A, C, D) are not directly related to the client's immediate safety or well-being. The number of rooms in the house (A) is not as important as ensuring the safety of the environment. The frequency of home visits (C) can be planned later based on the initial assessment. The friendliness of the client and family (D) is important for building rapport but does not address the immediate safety concerns of the client.

Correct Answer: A

Rationale: The correct answer is A: Post-trauma syndrome related to being attacked. This diagnosis accurately reflects the client's symptoms of reliving the traumatic event, crying uncontrollably, and expressing fear. Post-trauma syndrome encompasses a range of symptoms following a traumatic event, such as flashbacks, anxiety, and emotional distress. The other choices are incorrect because they are either too vague (B: Psychological overreaction) or do not capture the specific nature of the client's symptoms (C: Needs assistance coping; D: Mental distress). Therefore, option A is the most appropriate diagnosis based on the client's presentation.

Correct Answer: D

Rationale: The correct answer is D: Vitamin D. Vitamin D is essential for the absorption of calcium in the intestines. Without sufficient vitamin D, the body cannot effectively absorb calcium, leading to potential issues with calcium absorption. Vitamin A (choice A) is not directly involved in calcium absorption. Vitamin B (choice B) and Vitamin C (choice C) also do not play a significant role in calcium absorption. Therefore, the lack of Vitamin D is the most likely cause for problems with calcium absorption.

Correct Answer: A

Rationale: The correct answer is A: Obtain his oral temperature. Seizure precautions typically include avoiding putting objects in the mouth to prevent injury during a seizure. Taking an oral temperature involves placing an object in the mouth, which could pose a risk if a seizure occurs. Choices B, C, and D are not contraindicated as they do not directly involve potential risks during a seizure. Allowing the patient to wear his own clothing, encouraging personal hygiene, and promoting mobility are safe practices that do not increase the risk of harm during a seizure.