Correct Answer: C

Rationale: White patches on the tongue are a sign of oral candidiasis, a common side effect of chemotherapy. This fungal infection can result in the development of white patches on the tongue. Dry, cracked lips (choice A) are more indicative of dehydration or lack of moisture. Red, swollen gums (choice B) may be a sign of gingivitis or periodontal disease. Pale, dry mouth (choice D) is not typically associated with mouth sores from chemotherapy.

Correct Answer: C

Rationale: The correct answer is to insert the catheter at a 15-degree angle. This angle allows for easier venous access by ensuring proper catheter placement into the vein. Applying a tourniquet above the insertion site can help distend the vein for better visualization but is not the immediate action required for the insertion process. Shaving the area around the insertion site is not necessary unless there is excessive hair that may interfere with the insertion. Using an 18-gauge needle for insertion is a specific detail related to the equipment rather than the technique of insertion.

Correct Answer: A

Rationale: The correct answer is A: Canned soup. Canned soups are usually high in sodium, which can increase blood pressure and should be avoided by clients with hypertension. Lean cuts of beef, bananas, and baked chicken are healthier options for individuals with hypertension as they are lower in sodium and can be included in a balanced diet to manage blood pressure levels.

Correct Answer: C

Rationale: The correct answer is C: Sodium 140 mEq/L. An elevated sodium level can affect the effectiveness of digoxin therapy and may lead to toxicity. Therefore, it is crucial to report this value to the provider. Potassium, calcium, and magnesium levels are important as well, but elevated sodium can have a more direct impact on digoxin therapy in this scenario.

Correct Answer: B

Rationale: When setting up a sterile field for a dressing change, the nurse should open the outermost flap of the sterile kit away from the body. This action helps maintain the sterility of the field by minimizing the risk of contamination. Option A is incorrect because the cap from the solution should be placed sterile side down to prevent contamination. Option C is incorrect because the sterile dressing should be placed at least 1.25 cm away from the edge of the sterile field to maintain its sterility. Option D is incorrect because the sterile field should be set up above waist level to prevent potential contamination from reaching the field.