397 mg = __ g. Convert the measurement.

(Do not round. Enter only the number, no label) .

Choice A rationale:

Proper hand-washing technique involves washing hands for at least 20 seconds. This duration ensures thorough cleansing and removal of germs, dirt, and contaminants from the hands. Washing for a shorter time, such as 10 seconds (Choice B), may not effectively eliminate all harmful microorganisms, increasing the risk of infections and transmission of diseases.

Choice B rationale:

Washing hands for only 10 seconds is insufficient to achieve the necessary level of cleanliness. It is essential to follow recommended guidelines to prevent the spread of infections in healthcare settings and other environments where hygiene is crucial.

Choice C rationale:

Washing hands for 45 seconds (Choice C) is longer than the recommended duration and might not be practical, especially in busy healthcare settings. While thorough hand hygiene is essential, excessively long washing times could lead to reduced compliance among healthcare workers, potentially compromising patient safety.

Choice D rationale:

Proper hand-washing technique involves scrubbing hands for at least 20 seconds, making Choice D incorrect. Following the recommended guidelines is crucial to maintaining a safe and hygienic healthcare environment.

Choice A rationale:

Scabies is a skin infestation caused by the Sarcoptes scabiei mite. While it is contagious, it does not require the use of an N95 respirator mask. Standard precautions, including wearing gloves, are sufficient when caring for a client with scabies.

Choice B rationale:

Mycoplasmal pneumonia is a type of pneumonia caused by the bacteria Mycoplasma pneumoniae. It is typically spread through respiratory droplets and does not require the use of an N95 respirator mask. Standard precautions, including wearing a mask, are appropriate for this condition.

Choice C rationale:

Tuberculosis (TB) is a highly contagious bacterial infection caused by Mycobacterium tuberculosis. TB spreads through the air when an infected person coughs or sneezes. To prevent the inhalation of TB bacteria, healthcare workers should wear N95 respirator masks (or higher level respirators) when caring for clients with active TB disease.

Choice D rationale:

Scarlet fever is a bacterial illness that develops in some people who have strep throat. It is caused by group A Streptococcus bacteria and is typically treated with antibiotics. Scarlet fever does not require the use of an N95 respirator mask. Standard precautions, including wearing gloves and a mask, are appropriate when caring for a client with scarlet fever. Wearing an N95 respirator mask is crucial when caring for clients with airborne infectious diseases like tuberculosis. This type of mask is designed to filter out at least 95% of airborne particles, providing a high level of protection for healthcare workers.