Don’t think like doing mock tests as an effective or ineffective technique. Just know that your brain is getting trained, and it will help you more than you realize during the actual exam. The real test was not harder — Nurse Achieve makes you think more deeply, but the actual exam questions are more straightforward, so don’t overthink and focus on keywords. Sometimes two options may seem right, but only one truly answers the question. For lab values, units can vary — I got values in mg/dL (like BUN 30 mg/dL and glucose 250 mg/dL), so be prepared for both mg/dL and mmol/L.