Correct Answer: C

Rationale: In catatonic schizophrenia, clients commonly exhibit immobile posturing, where they may maintain a fixed position for extended periods. This could include holding rigid poses or remaining motionless. Choice A, 'Crying,' is not typically associated with catatonic schizophrenia. Choice B, 'Self-mutilation,' refers to a different behavior seen in some mental health conditions but is not a characteristic feature of catatonic schizophrenia. Choice D, 'Repetitive activities,' does not align with the typical presentation of catatonic schizophrenia, which is characterized by motor abnormalities such as immobility rather than engaging in purposeful repetitive movements.

Correct Answer: D

Rationale: In situations where a client is unable to sign the consent form, obtaining a telephone consent from a family member witnessed by two healthcare providers is the appropriate action to ensure informed consent is obtained. Option A is not necessary and involves legal proceedings. Option B is not ethical as the nurse cannot sign the consent on behalf of the client. Option C is unsafe and violates the client's rights by proceeding without proper consent.

Correct Answer: D

Rationale: The correct answer is to administer the Coumadin along with the heparin drip as ordered. Heparin and warfarin are often given together initially because warfarin takes a few days to become effective. Discontinuing the heparin drip before initiating Coumadin can increase the risk of clot formation. Checking the client's INR before starting Coumadin is important but not the immediate action required. Clarifying the order with the healthcare provider is not necessary as both medications are commonly used together.

Correct Answer: B

Rationale: The correct answer is B: Chest tube insertion. In the context of a pancreatic pseudocyst rupturing, a chest tube may be needed if the pseudocyst extends into the pleural space, leading to a pleural effusion. Choice A, paracentesis, involves the removal of fluid from the abdominal cavity, not the pleural space. Choice C, lumbar puncture, is a procedure performed to collect cerebrospinal fluid from the spinal canal, not relevant in this scenario. Choice D, biopsy of the pancreas, is not indicated in the immediate management of a ruptured pseudocyst.

Correct Answer: B

Rationale: Clients who smoke require more vitamin C due to increased oxidative stress and depletion of vitamin C. Smoking leads to the generation of free radicals in the body, causing oxidative stress and consuming higher levels of antioxidants like vitamin C. Choices A, C, and D are incorrect as they do not directly relate to the increased need for vitamin C as seen in smokers.