NURSING ANM AND GNM

Detailed explanation-1: -Presumptive testing is commonly performed by monitoring the colour changes when toxicant is present in a sample. The colour testing was used in this lab to monitor the presence of heavy-metal ions.

Detailed explanation-2: -Abstract. Chemical ‘spot’ tests are a presumptive illicit drug identification technique commonly used by law enforcement, border security personnel, and forensic laboratories. The simplicity, low cost, and rapid results afforded by these tests make them particularly attractive for presumptive identification globally.

Detailed explanation-3: -Mix the water sample well. Inoculate the 3 DSLB tubes with 10 mL of the water sample. Inoculate 3 SSLB tubes with 1 mL of the water sample. Inoculate 3 SSLB tubes with 0.1 mL of the water sample. Place all 9 tubes in the tray on the side bench to be incubated at 37°C for 48 hours.