In the operating room, personnel should be responsible for ensuring cleanliness, proper temperature, humidity, and lighting. Who carries those responsibilities?

Correct Answer: A

Rationale: The correct answer is A: circulating nurse. The circulating nurse is responsible for maintaining cleanliness, ensuring proper temperature, humidity, and lighting in the operating room. They coordinate activities, manage supplies, and ensure a safe environment for the surgical team. The scrub nurse assists the surgeon with instruments and supplies, not environmental conditions. The surgeon's main focus is on performing the surgery, not environmental management. The anesthesiologist is responsible for administering anesthesia and monitoring the patient's vital signs, not the operating room environment.

Correct Answer: C

Rationale: Rationale: Parkinson's disease is characterized by dopamine deficiency in the brain, leading to motor symptoms like bradykinesia, rigidity, and tremors. Dopamine is crucial for controlling movement. Acetylcholine (A) is not directly related to Parkinson's symptoms. Serotonin (B) is involved in mood regulation, not movement control. Phenylalanine (D) is an amino acid and not directly related to Parkinson's pathology. Therefore, the correct answer is C.

Correct Answer: A

Rationale: The correct answer is A: Denial. The client's refusal to accept the diagnosis of diabetes mellitus, stating that no one in their family has had it, indicates denial as a coping mechanism. Denial is a defense mechanism where individuals refuse to acknowledge unpleasant realities. In this case, the client is rejecting the diagnosis to avoid facing the reality of having a chronic condition. The other choices (B: Anger, C: Withdrawal, D: Resolution) do not fit the client's response in this scenario. Anger involves expressing frustration or hostility, withdrawal is avoiding the situation, and resolution is accepting and dealing with the issue.

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 answer is C: Trunk. The thoracic cord supplies nerves to the trunk region of the body. The thoracic spinal nerves innervate the chest, abdomen, and back. They control sensation and movement in these areas. The head (A) is mainly supplied by cranial nerves, the pelvis (B) is innervated by lumbar and sacral nerves, and the coccyx (D) is supplied by the sacral nerves. Therefore, the correct answer is C as it aligns with the anatomical distribution of the thoracic spinal nerves.

Correct Answer: A

Rationale: The correct answer is A: A clot can enter the circulation. When a clotted cannula is aggressively flushed, the force can dislodge the clot, allowing it to enter the circulation and potentially leading to serious complications such as embolism. Incorrect choices: B: An air embolism can enter the circulation - In the context of a clotted cannula, air embolism is less likely compared to a clot entering the circulation. C: A painful arterial spasm can occur - Arterial spasm is a potential complication but not directly related to flushing a clotted cannula. D: Fluid extravasation into surrounding tissue can occur - Flushing a clotted cannula may not specifically lead to fluid extravasation, as it is more related to needle dislodgement or improper placement.

Correct Answer: C

Rationale: The correct next step after identifying nursing diagnoses is planning. Planning involves setting goals and creating a plan of care to address the patient's needs based on the identified nursing diagnoses. This step helps in determining interventions and outcomes for the patient. Assessment has already been completed, and diagnosis is the step where nursing diagnoses are identified. Implementation comes after planning, where the nurse carries out the planned interventions. Therefore, the logical next step in the nursing process after identifying nursing diagnoses is planning.

Correct Answer: A

Rationale: The correct answer is A because providing clear liquids only until the patient can swallow solid foods is not a recommended nursing intervention to prevent aspiration. Clear liquids do not require the same level of swallowing coordination as solid foods, so it may not help improve swallowing ability. B: Having the patient swallow twice after each bite can help clear the throat and reduce the risk of aspiration. C: Placing food on the unaffected side of the mouth can help direct the food towards the stronger side for swallowing. D: Checking the patient's mouth for pocketing of food is important to ensure that food is not being retained in the mouth, which could lead to aspiration.

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.