The Needle Size Most Commonly Used in Infants and the Elderly

question 26

Multiple Choice

The needle size most commonly used in infants and the elderly is _____ gauge.

• A) 16
• B) 23
• C) 35
• D) 21

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Definitions:

Anaerobic Bacteria

Microorganisms that can live and grow in environments lacking oxygen.

Oxygen

A chemical element with symbol O and atomic number 8, essential for most life forms on Earth as a component of air and water, and used in cellular respiration.

Safranin

A bright red dye used in histology and cytology to stain cell nuclei red, often as a counterstain in various staining protocols, including Gram staining.

Decolorizer

A chemical agent used to remove color in staining or laboratory procedures.