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Medical Assisting > Phlebotomy > Flashcards

Phlebotomy Flashcards

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USMLE® Step 1 flashcards
1
Q

Where is the best site for a capillary puncture?

A

Fingertip

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2
Q

What percentage of the blood is made up of RBC?

A

44%

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3
Q

What percentage of the blood is made up of RBC?

A

44%

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4
Q

What percentage of the blood is made up of WBC?

A

1%

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5
Q

What condition requires most caution when applying a tourniquet?

A

Sickle Cell Disease

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6
Q

What is Sickle Cell Disease?

A

Disorder that makes Red Blood Cells break down or become mishapen

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7
Q

Hemoglobin A1C is a representation of what?

A

Average blood glucose levels

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8
Q

What is the purpose of thrombin additive in a blood collection tube?

A

To promote blood clotting

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9
Q

What color of blood tube does not require an additive?

A

Red

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10
Q

What are used in testing that react a specific way when exposed to certain substances?

A

reagents

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11
Q

What are the 5 types of WBC?

A
  1. Monocytes
  2. Basophils
  3. Eosinophils
  4. Lymphocytes
  5. Neutrophils
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12
Q

What is the biggest type of WBC?

A

Monocytes

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13
Q

What is the most abundant WBC?

A

Neutrophils

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14
Q

What does a spirometer measure?

A

A spirometer measures how much air is moved in and out of the lungs, as well as the rate at which the air moves.

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15
Q

Palpitation

A

involves using the fingertips to feel for organs, masses, or other abnormalities.

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16
Q

Percussion

A

involves tapping to determine the density of an internal structure

17
Q

Ausculation

A

involves the use of a stethoscope to listen to internal structures

18
Q

Manipulation

A

is passively moving joints to determine their range of movement.

19
Q

Ritonavir

A

Common antiviral given to patients with HIV

20
Q

What kind of sample is used for occult blood testing?

A

Stool sample

21
Q

What is an embolism?

A

Arterial blockage
Often caused by a blood clot

22
Q

What is a contusion?

A

a bruise

23
Q

What is the universal donor?

A

O-

24
Q

What do Basophils do?

A

protect your body from infections or respond to intruders like parasites, fungi and cancer cells and allergens

25
Q

What does a high Basophil count mean?

A

Sign of chronic inflammation in the body

26
Q

If a urine specimen is refrigerated what is likely to occur?

A

crystals will form

27
Q

What test is most commonly performed in a physician’s office lab?

A

Urinalysis

28
Q

What lab is used for a liver function test?

A

High- density lipoprotein

Medical Assisting (13 decks)

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