Which one of the following statements is correct?

Correct Answer: A

Rationale: Certainly! The correct answer is A because cerebral contusion, which is a bruising of the brain tissue, can indeed coalesce to form an intracerebral hematoma, which is a collection of blood within the brain tissue. This process occurs due to the disruption of blood vessels during the contusion. Choice B is incorrect as epidural hematomas are typically seen in the temporal region, not the frontal region. Choice C is incorrect because subdural hematomas are usually caused by injury to the bridging veins rather than the middle meningeal artery. Choice D is incorrect as subdural hematomas typically have a crescent shape on CT scans, not a lenticular shape.

Correct Answer: B

Rationale: The correct answer is B: Pulmonary contusion. Rationale: 1. The patient has a flail chest on the right side, indicating chest wall trauma. 2. Tachypnea suggests respiratory distress to compensate for impaired gas exchange. 3. The ABG shows a low PaO2 (hypoxemia), low PaCO2 (respiratory alkalosis), and high pH (alkalosis), consistent with pulmonary contusion causing ventilation-perfusion mismatch and hypoxemia. 4. Hypoventilation (choice A) would typically show high PaCO2 and low pH. 5. Hypovolemia (choice C) would present with different ABG findings, such as low pH and high bicarbonate. 6. A small pneumothorax (choice D) would not cause such significant gas exchange abnormalities. Summary: Pulmonary contusion is the most likely cause as it fits with the clinical presentation and ABG findings, while the other choices do not

Correct Answer: D

Rationale: The correct initial diagnostic study for evaluating the urinary tract in this patient is "Retrograde urethrography" (Choice D). Rationale: 1. Retrograde urethrography is the appropriate choice because the patient has blood in the external urethral meatus, indicating a possible urethral injury. 2. This imaging technique involves injecting contrast material into the urethra to visualize any urethral abnormalities or injuries. 3. It is a non-invasive and effective method to assess the extent of urethral trauma in cases like this. 4. Cystoscopy (Choice A) is not the initial study of choice in this scenario as it primarily visualizes the bladder and may not provide adequate information about urethral injuries. 5. Cystography (Choice B) and IV pyelography (Choice C) are not appropriate in this case as they focus on assessing the bladder and kidneys, respectively, which are not the primary concerns based on the patient's

Correct Answer: C

Rationale: The correct answer is C: Primary nursing. In primary nursing, the registered nurse takes on the responsibility for the majority of daily care for specific residents. This model promotes continuity of care and allows the nurse to develop a deeper understanding of the residents' needs. Facility nursing (A) refers to care provided by nurses within a healthcare facility without specifying a particular nurse's role. Team nursing (B) involves a team of healthcare providers working together to deliver care, without one nurse taking primary responsibility. Functional nursing (D) assigns specific tasks to different nursing personnel rather than focusing on individualized care by a single nurse.

Correct Answer: C

Rationale: The correct answer is C: Return charts to their proper place after use. This is the best way for a nursing assistant to keep residents' health information confidential because it ensures that sensitive information is stored securely and not left out in the open where unauthorized individuals can access it. By returning charts to their proper place, the nursing assistant is following proper protocol for maintaining confidentiality and upholding the residents' right to privacy. Choice A is incorrect because discussing a resident's information away from the facility does not guarantee confidentiality and can still risk unauthorized disclosure. Choice B is incorrect as bringing family and friends to the facility can compromise residents' privacy and confidentiality. Choice D is incorrect as posting updates about residents on social media violates their right to privacy and confidentiality.