NURSING ANM AND GNM

NURSING EXAM QUESTIONS

TOXICOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Positive color spot test for lead:
A
blue
B
red
C
yellow
D
green
Explanation: 

Detailed explanation-1: -If the swab turns pink, the test is positive and lead is present. If the swab indicates no color change, the test is negative and no leachable lead has been detected.

Detailed explanation-2: -Chemical spot test kits detect the presence of lead in paint by a chemical reaction that may occur when chemicals in the kit are exposed to lead. This reaction may cause a color change to occur if lead reacts with the chemicals in the kit.

Detailed explanation-3: -Clean the area to remove any dirt, dust, or debris from the testing area. Insert a swab into the indicator vial. Rub the test surface using the cotton swab provided in the kit. The tip changes color with the detection of lead. 18-Jan-2022

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