Correct Answer: D

Rationale: The correct answer is D: Sitting up leaning slightly forward. This position helps prevent blood from flowing back into the throat, reducing the risk of choking and aspiration. It also allows for better drainage of blood out of the nose. Lying down with feet elevated (choice A) can increase blood flow to the head and worsen the nosebleed. Sitting up with neck extended (choice B) can lead to blood flowing into the throat. Lying down with a small pillow under the head (choice C) may cause blood to flow backward.

Correct Answer: B

Rationale: The correct answer is B (AB). AB blood type is the rarest because it is a result of inheriting both A and B alleles, making it less common in the population. AB individuals can only receive blood from other AB individuals due to their unique antigens. Blood types A, B, and O are more common in the population, with O being the most common as it is the universal donor. Blood type A and B are more common than AB since they only require one allele for their respective antigens. Thus, the rarity of AB blood type is due to the inheritance of both A and B alleles, making it the least common among the choices provided.

Correct Answer: B

Rationale: The correct answer is B: Ask the patient to describe the type of reaction. This is the first action the nurse should take because it helps determine the severity of the allergy and how to best proceed with care. By understanding the specific type of reaction the patient experiences, the nurse can implement appropriate precautions and interventions to prevent any adverse reactions during the patient's stay. Choice A is incorrect because placing the patient in isolation is not necessary for a latex allergy. Choice C is incorrect as terminating the interview is premature and does not address the patient's allergy. Choice D is also incorrect as documenting the allergy is important but not the first action to take when assessing a patient's allergic reaction.

Correct Answer: B

Rationale: The correct answer is B: Ask the patient to describe the type of reaction. This is the first action the nurse should take because it is essential to assess the severity of the latex allergy to determine the appropriate precautions and interventions. By asking the patient to describe the type of reaction, the nurse can gather crucial information to ensure patient safety. Choice A is incorrect because placing the patient in isolation is not necessary for a latex allergy. Choice C is incorrect as terminating the interview prematurely is not appropriate without gathering important information about the allergy. Choice D is incorrect because documenting the allergy is important, but assessing the type of reaction should be the initial priority.

Correct Answer: C

Rationale: The correct answer is C: Asymmetry. The ABCD method is a mnemonic used for assessing skin lesions for possible skin cancer. The A in ABCD stands for Asymmetry, indicating that the lesion is not symmetrical in shape or color. Skin cancers often exhibit asymmetrical features. Actinic (Choice A) refers to sun damage, Arcus (Choice B) is a term related to the eye, and Assessment (Choice D) is a general term that does not specifically relate to skin lesion evaluation. By focusing on asymmetry, healthcare providers can identify potential skin cancer lesions early for further evaluation and treatment.