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NHA CCMA National Exam Study Guide - Vaccines, testing, medical instruments, and vitamins Section Questions & Answers

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Subcutaneous injection gauge - ANSWERS23-25 gauge, 5/8" needle Intramuscular injection gauge - ANSWERS22-25 gauge needle, 1" to 1.5" needle (only use 5/8" needle if patient is less than 130 pounds) Webber test - ANSWERSTunning fork on midline of skull, pt idenities sound that is loudest. normal hearing sound is heard equally, sound louder in ear with hearing loss, softer in ear with sensorineural hearing loss. Rinne test - ANSWERShearing test using a tuning fork; checks for differences in bone conduction and air conduction Snellen chart - ANSWERSused to measure visual acuity 50/20 vision - ANSWERSBelow average: what patient sees letter at 20 ft is what normal population sees at 50 ft Ishihara test - ANSWERStests for color vision scratch test - ANSWERStype of allergy testing in which body is exposed to allergens through a light scratch in skin Fat soluble vitamins - ANSWERSA, D, E, K SA node - ANSWERSpacemaker of the heart AV node - ANSWERSrelays electrical impulses from atria into ventricles Purkinje fibers - ANSWERSfibers in the ventricles that transmit impulses to the right and left ventricles, causing them to contract

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NHA CCMA National Exam Study Guide -
Vaccines, testing, medical instruments,
and vitamins Section Questions &
Answers
Subcutaneous injection gauge - ANSWERS23-25 gauge, 5/8" needle

Intramuscular injection gauge - ANSWERS22-25 gauge needle, 1" to 1.5" needle (only
use 5/8" needle if patient is less than 130 pounds)

Webber test - ANSWERSTunning fork on midline of skull, pt idenities sound that is
loudest. normal hearing sound is heard equally, sound louder in ear with hearing loss,
softer in ear with sensorineural hearing loss.

Rinne test - ANSWERShearing test using a tuning fork; checks for differences in bone
conduction and air conduction

Snellen chart - ANSWERSused to measure visual acuity

50/20 vision - ANSWERSBelow average: what patient sees letter at 20 ft is what normal
population sees at 50 ft

Ishihara test - ANSWERStests for color vision

scratch test - ANSWERStype of allergy testing in which body is exposed to allergens
through a light scratch in skin

Fat soluble vitamins - ANSWERSA, D, E, K

SA node - ANSWERSpacemaker of the heart

AV node - ANSWERSrelays electrical impulses from atria into ventricles

Purkinje fibers - ANSWERSfibers in the ventricles that transmit impulses to the right and
left ventricles, causing them to contract

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