Correct Answer: B

Rationale: In the context of establishing a trusting relationship with a client who has major depressive disorder, offering general leads is the most appropriate communication technique. General leads encourage clients to express themselves by providing subtle prompts or cues, which can help build rapport and trust. Offering medical advice (Choice A) is not suitable as it may come across as imposing and could hinder the establishment of trust. Asking open-ended questions (Choice C) is beneficial for eliciting detailed responses but may not be as effective at initially establishing trust as general leads. Using assertive communication (Choice D) can be perceived as aggressive and intimidating, which is not conducive to building a trusting relationship with a client who has major depressive disorder.

Correct Answer: B

Rationale: Constant bubbling in the water seal chamber indicates an air leak, which should be reported to the provider. This finding suggests that the chest tube system is not functioning properly, leading to potential complications such as pneumothorax. Drainage of 75 mL in the first hour after surgery is within the expected range for a chest tube. Tidaling in the water seal chamber is a normal fluctuation and indicates proper functioning of the system. Client report of pain at the chest tube insertion site is expected after surgery and can be managed with appropriate pain management measures.

Correct Answer: D

Rationale: The correct answer is D because clients should press the button on the PCA pump when they feel pain to receive controlled doses of medication. Option A is incorrect as the client should be the one to self-administer the medication through the PCA pump. Option B is incorrect as the primary purpose of the PCA pump is to manage pain, not to keep the client comfortable. Option C is incorrect because the client should not adjust the dosage themselves; instead, they should communicate any pain concerns to the healthcare provider.

Correct Answer: D

Rationale: The correct answer is 'Muscle weakness.' Hypokalemia is characterized by low potassium levels, which can lead to muscle weakness due to impaired muscle function. Choices A, B, and C are incorrect findings associated with other medical conditions and not typically expected in hypokalemia. Muscle stiffness is more commonly associated with conditions like tetany or muscle cramps, bradycardia is more commonly associated with issues like heart block or hypothyroidism, and hyperreflexia is more commonly seen in conditions like hyperthyroidism or spinal cord injuries.

Correct Answer: A

Rationale: The appropriate action for a healthcare professional when administering a blood transfusion is to verify the patient's identity. This step is essential to ensure that the correct blood product is given to the right patient, preventing any errors or adverse reactions. While monitoring vital signs and staying with the patient during the initial phase of the transfusion are also important steps, the primary action of verifying the patient's identity takes precedence to uphold patient safety and prevent any potential harm.