Nev. Rev. Stat. § 50.310
1. The affidavit or declaration of a laboratory director who has qualified in the district court of any county as an expert witness to testify regarding the results of a test of a medical laboratory is admissible in evidence in any civil, criminal or administrative proceeding to prove:
(b) The results of a test that the medical laboratory is licensed to conduct and which is conducted by the medical laboratory of which the affiant or declarant is the laboratory director.
The affidavit or declaration must contain the evidentiary foundation upon which the results of the test are based, including the description of the test, the personnel involved and the controls employed in conducting the test.
2. As used in this section:
(Added to NRS by 1993, 248; A 1997, 1418)