Final answer:
The correct statement by the student nurse indicating effective learning about CRRT is that it is provided over approximately 24 hours, which is a continuous and slow process suitable for certain patients.
Step-by-step explanation:
The student nurse indicates effective learning about continuous renal replacement therapy (CRRT) when they state: "CRRT is provided over approximately 24 hours." This statement is true as CRRT is indeed a slow, continuous process typically provided over a 24-hour period, which is especially useful in hemodynamically unstable patients. This contrasts with hemodialysis, which is a shorter, more intermittent process that generally lasts for about 2-8 hours and is performed several times a week.
Regarding the other options, CRRT typically does require the addition of an anticoagulant to prevent blood clotting in the circuit or the filter. CRRT can be used in conjunction with hemodialysis, but they are different modalities with CRRT being continuous and hemodialysis being intermittent. Lastly, CRRT has a slower blood flow rate compared to hemodialysis, hence making statement D incorrect.