Correct Answer: C

Rationale: The correct answer is C: Close the roller clamp on the new tubing after priming it. This step ensures that the tubing is primed with the solution and ready for use while preventing air from entering the central line. Option A is incorrect because using the present solution may introduce contamination. Option B is incorrect as connecting tubing before running fluid can introduce air into the line. Option D is incorrect as positioning the client on the right side does not prevent air embolism during tubing change.

Correct Answer: A

Rationale: Rationale for Correct Answer (A): Prostate-specific antigen (PSA) is a protein produced by the prostate gland. It is primarily used to screen for prostate cancer by measuring the levels of PSA in the blood. PSA levels can help detect prostate cancer early. Therefore, choice A is the correct answer as it accurately describes PSA and its primary use. Summary of Incorrect Choices: B: Protein serum antigen is not a commonly known term in healthcare. There is no specific antigen called "protein serum antigen" used to determine protein levels. C: Pneumococcal strep antigen is a bacterial antigen that causes pneumonia, not related to PSA used in prostate cancer screening. D: Papanicolua-specific antigen is not a recognized term. The Papanicolaou test (Pap smear) is used for cervical cancer screening, not a specific antigen like PSA.

Correct Answer: D

Rationale: The correct answer is D, "All of the above." Malignant melanoma, basal cell epithelioma, and squamous cell carcinoma are all types of skin cancer associated with prolonged sun exposure. Melanoma is the most dangerous form, while basal cell and squamous cell carcinomas are more common but less aggressive. Sun exposure can lead to DNA damage in skin cells, increasing the risk of developing these types of cancers. Therefore, all three choices are correct as they are all linked to sun exposure. The other choices are incorrect because each type of skin cancer mentioned can be caused by prolonged sun exposure, so selecting any one of them individually would not fully capture the scope of the risks associated with sun exposure.

Correct Answer: A

Rationale: The correct answer is A: Adrenal cortex. Primary hyperaldosteronism is a condition where the adrenal cortex produces too much aldosterone hormone, leading to hypertension. The adrenal medulla secretes adrenaline and noradrenaline, not aldosterone, making option B incorrect. The pancreas secretes insulin and glucagon, not aldosterone, making option C incorrect. Option D is incorrect because the adrenal cortex is responsible for aldosterone secretion in primary hyperaldosteronism.

Correct Answer: C

Rationale: The correct answer is C: "You may feel a burning sensation when the dye is injected." This is important to include in preprocedure teaching for carotid angiography because it prepares the patient for a common sensation they may experience during the procedure. Providing this information helps manage expectations and reduce anxiety. Choice A is incorrect because carotid angiography is typically done with the patient awake. Choice B is incorrect as carotid angiography usually takes around 30-60 minutes. Choice D is incorrect because there can be complications associated with carotid angiography, such as allergic reactions or damage to blood vessels.