Correct Answer: D

Rationale: The nurse should report a possible superinfection side effect of the cephalosporin to the physician as the patient's symptoms may indicate a superinfection that requires treatment. Holding the drug is not necessary unless directed by the provider. Culturing the lesions is not indicated for this situation. There is no evidence to suggest impending anaphylaxis based on the patient's symptoms.

Correct Answer: B

Rationale: In a client with kidney trauma and blood visible at the urinary meatus, inserting a urinary catheter via the urethra should be avoided until further diagnostic studies are completed to prevent potential urethral tears. The nurse should consult the provider about the need for a catheter; if necessary, a suprapubic catheter can be used instead. Assessing vital signs every 15 minutes is important for continuous monitoring of the client's condition. Administering intravenous fluids at 125 mL/hr is crucial to maintain hydration and support kidney function. Typing and crossmatching for blood products is necessary in case the client requires blood transfusion due to potential blood loss from the trauma.

Correct Answer: A

Rationale: The patient is showing signs of fluid volume excess, indicated by crackles in both lungs, increased heart rate, and elevated blood pressure. To address this, the nurse should decrease the IV fluid rate and notify the provider. Increasing the IV fluid rate would worsen fluid overload. Requesting colloidal or hypertonic IV solutions would exacerbate the issue by pulling more fluids into the intravascular space, leading to further volume overload.

Correct Answer: B

Rationale: The correct answer is B because dialysis works by the movement of solutes from an area of higher concentration to an area of lower concentration, which is known as diffusion. The other statements are accurate: A correctly describes the movement of sodium during hemodialysis, C explains the removal of excess fluid by osmosis, and D highlights the purpose of the dialysate in removing toxins from the blood.

Correct Answer: D

Rationale: The correct answer is asking the client to void, discarding the specimen, and noting the start time. During a 24-hour urine collection, the first voided urine is discarded to ensure the test starts with an empty bladder. The specimen should be kept chilled, not at room temperature, to prevent bacterial growth. The last voided specimen is not discarded because it contributes to the total volume collected, so choice C is incorrect. Discarding the specimen and noting the start time is essential for accurate results in a timed quantitative determination like a 24-hour urine collection.