Correct Answer: D

Rationale: The statement 'I should continue taking my over-the-counter herbal supplements' (D) indicates a need for further teaching because some herbal supplements can interact with anticoagulants, increasing the risk of bleeding. It is crucial to inform healthcare providers about all medications, including herbal supplements, to prevent adverse interactions. The other statements reflect appropriate understanding of precautions related to DVT and anticoagulation therapy.

Correct Answer: A

Rationale: A low serum albumin level is the most reliable indicator of chronic protein malnutrition. Serum albumin levels reflect long-term protein status, and a significantly lowered level usually indicates ongoing protein deficiency. Other laboratory values, such as serum transferrin, hemoglobin, or cholesterol levels, may be affected by various factors and conditions, but serum albumin is a more specific marker for chronic protein malnutrition.

Correct Answer: C

Rationale: Observing a client using accessory neck muscles during respiration indicates respiratory distress. The priority action should be to measure oxygen saturation to assess the adequacy of oxygenation. This intervention provides crucial information about the client's respiratory status and helps guide further assessment and interventions.

Correct Answer: A

Rationale: Ensuring that the client signs the consent form (A) is the most crucial action before surgery. The consent form is legally and ethically necessary for the procedure to proceed. While reviewing allergies (B), confirming identity (C), and verifying the surgical site (D) are essential steps, obtaining the client's informed consent takes precedence to protect the client's rights and ensure a safe surgical experience.

Correct Answer: C

Rationale: Swelling at the IV site may indicate infiltration or phlebitis, which requires stopping the IV infusion and notifying the healthcare provider. Infiltration occurs when the IV fluid leaks into the surrounding tissue, causing swelling and potential damage. It is crucial to act promptly to prevent further complications and ensure the client's safety.