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Diagnostic Procedures Flashcards

7 cards from real CMA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Diagnostic Procedures flashcards as text

  1. How far should a patient stand from a Snellen chart during distance vision screening?

    Answer: 20 feet

    The Snellen test is standardized at 20 feet.

  2. A visual acuity result of 20/40 means the patient:

    Answer: Sees at 20 feet what a normal eye sees at 40 feet

    The top number is the testing distance, and the bottom number is the distance at which a normal eye could read that line.

  3. The Ishihara test is used to screen for:

    Answer: Color vision deficiency

    Ishihara plates show numbers made of colored dots to detect color blindness.

  4. Spirometry is mainly used to measure:

    Answer: Lung volumes and airflow

    Spirometry measures values such as FVC and FEV1 to assess lung function.

  5. What is the normal fasting blood glucose range for an adult?

    Answer: 70-99 mg/dL

    A normal fasting glucose is 70 to 99 mg/dL; 100 to 125 suggests prediabetes.

  6. During a capillary (fingerstick) puncture, why is the first drop of blood wiped away?

    Answer: It may contain tissue fluid and alcohol residue

    The first drop can be diluted by tissue fluid or contaminated by alcohol, which skews results.

  7. A patient being fitted with a Holter monitor should be told to:

    Answer: Keep a diary of activities and symptoms

    The diary lets the provider match symptoms and activities to the recorded heart rhythm, usually over 24 to 48 hours.