Ohmmeters work by passing a small current through the component and measuring the voltage produced. If you try this with the component connected into a circuit with a power supply, the most likely result is that the meter will be damaged. Most multimeters have a fuse to help protect against misuse.
Lice itself is a Plural form and the the Singular of it is Louse. Louse ( Insect ) Louse is the common name for members of the order Phthiraptera, which contains nearly 5,000 species of wingless insect. : Wikipedia.
Lice are host specific and the only lice that will feed on humans are the human head louse (Pediculus humanus capitis), body louse (Pediculus humanus humanus), and crab or pubic louse (Pthiris pubis). Human lice are not known to transmit any disease-causing pathogens in North America.