Nationally Registered Certified Medical Assistant (NRCMA) (NAHP) Practice Exam

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Study for the Nationally Registered Certified Medical Assistant Exam. Prepare with interactive quizzes and multiple-choice questions that come with helpful hints and explanations. Get ready to earn your certification with confidence!

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The size of the needle is expressed by

Inches
Centimeters
Millimeters
Gauge numbers

The correct answer is: Gauge numbers

Gauge numbers are the standard unit used to measure the size of a needle and are commonly used in medical and industrial applications. The other options, inches, centimeters, and millimeters, are also units of length, but are not commonly used to measure needle size. Using these options to measure needle size can result in less accurate measurements or make it difficult to find the correct needle size. So, while all of these units can technically be used to measure needle size, the most accurate and commonly used unit is gauge numbers.