A condition resulting from the depletion of carbon dioxide; blood pH rises markedly as the hydrogen ion concentration decreases.

Also referred to a user seal check or fit check. Don the respirator, mold nose piece to engage a snug fit. Place hands over respirator, careful not to disturb position. Positive seal check: Exhale sharply (puff). No leakage should occur around the respirators periphery. Negative seal check: Inhale sharply. If no leakage, the negative pressure will make the respirator appear to cave inward.

Multiplication of microorganisms to repopulate an area after a large portion of the microbial population was destroyed or removed (e.g. after a surgical scrub).

A gown that is reinforced (e.g. fabric, plastic) either entirely or at defined locations to increase the fluid barrier capability of the material, often used by orthopedic surgeons, for example.

A polypeptide sex hormone of the corpus luteum that facilitates birth by causing relaxation of the pelvic ligaments.

Pertaining to the kidneys.

To reestablish nutritional stores.

Place in which an infectious agent can survive but may or may not multiply.

Microorganisms that are normal in a particular body area.

The amount of air (approximately 1.2 L) remaining in the lungs after the most forceful expiration.