Mr. Mariano was on his way home from a party. Apparently, he got drunk and lost his balance and suffered a vehicular accident. Upon arrival at the hospital, the nurse noticed that his only injury is an open fracture of the left humerus. Which assessment finding by the nurse is critical?

Correct Answer: A

Rationale: The correct answer is A: status of client’s tetanus immunization. It is critical because an open fracture poses a risk of infection, and tetanus prophylaxis is necessary to prevent tetanus infection. Tetanus is caused by a bacterium commonly found in soil and can enter the body through open wounds. Assessing the client's tetanus immunization status helps determine the need for a tetanus booster to prevent potential complications. Incorrect choices: B: Current blood alcohol level - While relevant to the situation, the priority in this case is preventing infection from the open fracture. C: Support systems available at home to assist with care - Important for discharge planning but not the immediate priority. D: Last time client voided - Not critical in this scenario compared to preventing infection from the open fracture.

Correct Answer: A

Rationale: The correct answer is A: It inhibits deoxyribonucleic acid (DNA) synthesis. Mitomycin works by cross-linking DNA, leading to inhibition of DNA synthesis and ultimately causing cell death. This mechanism of action makes it effective against rapidly dividing cancer cells. B: It’s cell cycle-phase specific - This is incorrect because mitomycin is not specific to a particular phase of the cell cycle. C: It inhibits ribonucleic acid (RNA) synthesis - This is incorrect as mitomycin primarily targets DNA synthesis, not RNA synthesis. D: It inhibits protein synthesis - This is incorrect as mitomycin's main mechanism of action is through DNA cross-linking, not protein synthesis inhibition.

Correct Answer: C

Rationale: The correct response is C: “Would you like to meet with your family and your physician about this matter?” Rationale: 1. Involving the family and physician ensures a collaborative decision-making process. 2. It respects the client's autonomy and involves them in the decision-making process. 3. It promotes open communication and support from loved ones. 4. It addresses the client's concerns about continuing treatment based on family wishes. Summary: A: Refers to psychological support, but the client's primary concern is medical treatment decisions. B: Involves religious support, which may not align with the client's beliefs or address the medical decision. D: Acknowledges the client's feelings but lacks a collaborative approach involving family and healthcare team.

Correct Answer: A

Rationale: The correct answer is A: status of client’s tetanus immunization. It is critical because an open fracture poses a risk of infection, and tetanus prophylaxis is necessary to prevent tetanus infection. Tetanus is caused by a bacterium commonly found in soil and can enter the body through open wounds. Assessing the client's tetanus immunization status helps determine the need for a tetanus booster to prevent potential complications. Incorrect choices: B: Current blood alcohol level - While relevant to the situation, the priority in this case is preventing infection from the open fracture. C: Support systems available at home to assist with care - Important for discharge planning but not the immediate priority. D: Last time client voided - Not critical in this scenario compared to preventing infection from the open fracture.

Correct Answer: B

Rationale: The correct answer is B: Re-exposure to a specific antigen. Memory cells are formed after initial exposure to an antigen. Upon re-exposure to the same antigen, memory cells quickly recognize and respond, converting into plasma cells to produce antibodies. This process is known as secondary immune response. Incorrect choices: A: An organ transplant - Organ transplant does not involve the conversion of memory cells to plasma cells. C: Release of lymphokines - Lymphokines are signaling molecules secreted by immune cells but do not directly cause memory cells to convert to plasma cells. D: Initial exposure to an antigen - Initial exposure to an antigen leads to the formation of memory cells, not their conversion to plasma cells upon re-exposure.

Correct Answer: A

Rationale: The correct answer is A: Provide positive feedback when he uses the word correctly. In individuals with expressive aphasia, positive reinforcement helps improve communication skills. Praising Mr. Reyea when he uses words correctly encourages continued effort and boosts confidence. This approach motivates him to communicate more despite his challenges. Summary of other choices: B: Waiting indefinitely for Mr. Reyea to verbally state needs is not practical and may lead to frustration. C: Suggesting permanent help at home assumes the disability cannot improve, which is not necessarily true for expressive aphasia. D: Helping the family to accept Mr. Reyea's inability to communicate verbally may hinder his progress and limit his social interactions.

Correct Answer: B

Rationale: The correct answer is B because focusing on the patient's presenting situation is the first step in the problem-oriented approach. This allows the nurse to gather relevant data related to the current health issue, which is crucial for identifying the problem and formulating a care plan. Option A is incorrect as chronological order may not prioritize the most critical data. Option C is incorrect as interpretations come after data collection. Option D is incorrect as observation typically follows data collection and analysis. Focusing on the patient's presenting situation ensures efficient and effective data collection for problem-solving.

Correct Answer: C

Rationale: The correct answer is C: Stop the transfusion. Lumbar pain during blood administration could indicate a transfusion reaction, such as a hemolytic reaction or fluid overload. Stopping the transfusion is crucial to prevent further harm to the client. Obtaining vital signs (A) is important but not the priority when a transfusion reaction is suspected. Assessing the pain further (B) may delay necessary intervention. Increasing the flow of normal saline (D) is not indicated and may worsen fluid overload. In this situation, stopping the transfusion is the most appropriate action to ensure client safety.

Correct Answer: A

Rationale: The correct answer is A: Detects the presence of malignant cells. Biopsy involves taking a sample of tissue to examine under a microscope for the presence of abnormal or cancerous cells. This procedure is crucial for diagnosing cancer accurately. Choice B (Measures hemoglobin content) is incorrect because hemoglobin content is typically measured through blood tests, not biopsies. Choice C (Measures the RBC size) is incorrect as RBC size is usually assessed through a complete blood count (CBC) test, not a biopsy. Choice D (Detects arterial occlusion) is incorrect because arterial occlusion is typically diagnosed through imaging studies like Doppler ultrasound or angiography, not through a biopsy procedure.