Correct Answer: A

Rationale: When mixing NPH and regular insulin in the same syringe, the nurse should first inject air into the NPH insulin vial. This action prevents contamination by allowing an easier withdrawal of the correct dose of NPH insulin after withdrawing the regular insulin. Withdrawing the prescribed dose of regular insulin (Choice B) is incorrect as it does not address the initial step of injecting air into the NPH vial. Similarly, withdrawing the prescribed dose of NPH insulin (Choice C) is incorrect as it skips the crucial first step. Mixing the two insulins in separate syringes (Choice D) is not ideal since combining them in one syringe is a common practice to reduce the number of injections for the patient.

Correct Answer: B

Rationale: Palpating the pulse distal to the cast is the priority as it assesses for circulation. Ensuring adequate blood flow is essential to prevent complications such as compartment syndrome. Placing an ice pack over the cast could cause constriction of blood vessels, further compromising circulation. Teaching the client about cast care and positioning the casted extremity on a pillow are important but do not take precedence over assessing circulation.

Correct Answer: C

Rationale: The correct answer is C, Chicken broth. A clear liquid diet includes clear fluids and foods that are liquid at room temperature. Chicken broth is allowed on a clear liquid diet as it is a clear liquid, while tomato soup, apple juice, and cranberry juice are not clear liquids. Tomato soup is a thicker substance and not allowed on a clear liquid diet. Apple juice and cranberry juice are also not clear liquids because they contain pulp and are not transparent like broth.

Correct Answer: C

Rationale: Using an abduction pillow between the client's legs is essential in maintaining proper alignment and preventing dislocation of the hip joint following a hip arthroplasty. Encouraging the client to lie flat in bed (Choice A) is not recommended as early mobilization is crucial for preventing complications. Applying heat to the incision site (Choice B) is not typically done immediately postoperatively. Placing a trochanter roll under the client's knees (Choice D) is not as beneficial as using an abduction pillow to maintain proper positioning.

Correct Answer: B

Rationale: In clients with cirrhosis, albumin levels are typically decreased due to impaired liver function. Bilirubin levels are often increased in cirrhosis due to the liver's inability to process bilirubin efficiently. Ammonia levels may be elevated in cirrhosis due to impaired ammonia metabolism by the liver. Prothrombin time is usually prolonged in cirrhosis because the liver's ability to synthesize clotting factors is impaired.