化验 (huà yàn): Chemical examination (Verb) — Meaning & Stroke Order

The doctor asked me to go for the laboratory test on an empty stomach to ensure the accuracy of the results.

The test results show everything is normal, so you can rest assured.

Didn't you receive the lab report for the samples sent for testing last week?

Due to equipment malfunction, the lab test results for this batch of raw materials were not issued on time.