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: C

Rationale: The nurse would identify platelets at 115,000/ul as an abnormal finding because it is below the normal range of 150,000-450,000/ul. Low platelet count can lead to increased bleeding risk. RBC count and hematocrit levels are within normal ranges, making them normal findings. Option D is incorrect as platelets are abnormal.

Correct Answer:

Rationale: Correct Answer: B: Ask about the chief concerns or problems. Rationale: After setting the agenda, the nurse should proceed by asking about the patient's chief concerns or problems to gather relevant information and focus the interview on the patient's needs. This step helps establish rapport and ensures the patient is actively involved in the conversation. Incorrect Choices: A: Beginning with introductions is important, but after setting the agenda, it is more crucial to address the patient's concerns. C: Explaining that the interview will be over in a few minutes is not appropriate as it may rush the patient and hinder open communication. D: Telling the patient about administering medications in 1 hour is not relevant at this stage and does not address the patient's immediate needs.

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: D

Rationale: Step 1: In HHNS, there is severe hyperglycemia leading to osmotic diuresis. Step 2: Osmotic diuresis causes loss of potassium in urine, leading to hypokalemia. Step 3: Hypokalemia is a common electrolyte imbalance in HHNS due to excessive urinary loss of potassium. Step 4: Therefore, the nurse should anticipate a below-normal serum potassium level in a client with HHNS. Summary: A: Elevated serum acetone level is seen in diabetic ketoacidosis, not HHNS. B: Serum alkalosis is not typically associated with HHNS. C: Serum ketone bodies are elevated in diabetic ketoacidosis, not HHNS.