What solution is best for cleaning lenses?
a. Commercial glass cleaning solution (e.g., Windex)
b. Water
c. Benzene
d. Xylol
ANS: A
A commercial glass cleaning solution is best used for cleaning lenses. Water will often only smudge anything present, especially on an oil immersion lens. Benzene and xylol are solvents that are carcinogenic and should not be used.
You might also like to view...
The mnemonic used to determine the patient's BEST response to stimuli would be:
A) SAMPLE. B) OPQRST. C) ABCD. D) AVPU.
Temporary income benefits end:
A) no later than 12 months from the date of the injury. After a year. B) once the worker reaches maximum medical improvement. Medical benefits C) once the employee is able to return to work. Income benefits D) within 6 months of the injury or accident. Income and death benefits
Most CO detectors provide an early warning alarm (usually a(n) ____) when low-level CO is detected.
A. automatic 9-1-1 call B. vibration C. intermittent beep D. light flash
CMS expects the majority of healthcare in the United States to be delivered through shared savings organizations by:
A. 2020. B. 2030. C. 2040. D. 2050.