MAP 126 CLO 7 Mastery Review

The medical assistant instructs the patient to forcefully breath air out and continue to exhale for at least 6 seconds. What type of test is the patient performing?

• Forced Vital Capacity

• Lung Diffusion Capacity

• Body Plethysmography

• Cardiopulmonary Exercise Stress Test

Upon examination of an adult patient reporting ear pain, the physician discovered a large amount of cerumen in the canal. The order is to irrigate and instill two drops of aminoglycoside (Tobramycin). For the procedure, the medical assistant should pull the _____.

• earlobe straight up and back

• pinna up and back

• pinna down and back

• earlobe straight down and forward

Answer explanation

When doing a procedure on the ear of an adult or child over 3 years of age, the pinna is gently pulled up and back to straighten the ear canal to allow for medication to reach the target area. If the patient is under three years of age, then gently pull back and down.

The provider orders a test to measure the rate and amount of air that is moved in and out of the lungs on a patient experiencing dyspnea. What device will the medical assistant use for this test?

• Fluoroscope

• Pulse Oximeter

• Spirometer

• Peak flow meter

What is the name of the chart that sets a standard for what an individual with normal vision can see at a distance of 20 feet and is used for screening distance visual acuity?

• Pelli-Robson

• Jaeger

• Ishihara

• Snellen

Answer explanation

A vision screening can be performed using the Snellen eye chart to measures distance visual acuity. This is usually one of the first tests performed during a routine eye exam. The Snellen eye chart sets a standard for what an individual with normal vision can see at a distance of 20 feet. The chart consists of eleven lines of block letters that decrease in size with multiple letters on each line.

A medical assistant may anticipate performing which of the following tests on an adult or child patient who is having ringing in the ears, decreased hearing in one or both ears and discharge from the effected ear.

• Ophthalmoscope

• Audiometer

• Otoscope

• Tympanometer

Answer explanation

An audiometer is a machine used for evaluating hearing acuity. They usually consist of an embedded hardware unit connected to a pair of headphones and a test subject feedback button, sometimes controlled by a standard PC. Such systems can also be used with bone vibrators, to test conductive hearing mechanisms.

A color vision acuity test for red-green color deficiencies, the first in a class of successful color vision tests called pseudo-isochromatic plates was invented by Dr. ___________.

• Ishihara

• Rinne

• Snellen

• Pelli-Robson

A noninvasive testing method for a person’s oxygen saturation is done using a technique known as _____.

• PFT

• ABG

• pulse oximetry

• spirometry

Answer explanation

Pulse oximetry is a noninvasive method for monitoring a person's oxygen saturation. Its reading of SpO₂ (perip0eral oxygen saturation) is not always identical to the reading of arterial oxygen saturation from arterial blood gas (ABG) analysis, but the two are correlated well enough that the safe, convenient, noninvasive, inexpensive pulse oximetry method is valuable for measuring oxygen saturation in clinical use.

When instilling eye medication in the form of an ointment, the MA should place gentle traction on the skin slightly below the lower eyelid and place the ointment _____.

• in the conjunctival sac

• in the inner (medial) canthus

• directly onto the cornea

• in the outer (lateral) canthus

Answer explanation

Place drops, ointments, and intraocular disks in the conjunctival sac. This area of the eye is much less sensitive and provides a more appropriate site for instilling ophthalmic medications.