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PMLS midterm lec > Topic 3 - arterial puncture > Flashcards

Topic 3 - arterial puncture Flashcards

1
Q

is used in the diagnosis and management of respiratory disorders such as lung
disease

A

Arterial Blood Gas evaluation

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2
Q

provide information about a patient’s oxygenation, ventilation and acid–base
balance, and in the management of electrolyte and acid–base balance in patients with
diabetes and other metabolic disorders

A

Arterial Blood Gas evaluation

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2
Q

A measure of the acidity or alkilinity of the blood

A

pH

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3
Q

are very sensitive to the effects of preanalytical errors; therefore accurate patient assessment and proper specimen collection
and handling are necessary to ensure accurate results.

A

ABG specimens

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4
Q

PARAMEDICAL PERSONNELS

A

physician
medtechs
nurses
respiratory therapist
level II phlebs

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5
Q

used to identify a condition such as accidosis or alkalosis

A

pH

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6
Q

A measure of how much oxygen is dissolved in the blood

A

PaO2

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7
Q

Partial pressure of oxygen in arterial blood

A

PaO2

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8
Q

Decreased oxygen levels in the blood increase the respiration rate and vice versa

A

PaO2

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9
Q

Indicates if ventilation is adequate

A

PaO2

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10
Q

Partial pressure of carbon dioxide in arterial blood

A

PaCO2

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11
Q

A measure of how much carbon dioxide is dissolved in the blood

A

PaCO2

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12
Q

Evaluates lung function

A

PaCO2

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13
Q

what affects increase of respiratory rate and vice versa

A

Increased CO2 levels in the blood

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14
Q

Alter PaCO2 levels

A

respiratory disturbances

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15
Q

Bicarbonate

A

HCO3

16
Q

A measure of the amount of bicarbonate buffer system of the kidneys

A

HCO3

17
Q

alter HCO3 levels

A

Metabolic and respiratory disturbances

18
Q

Oxygen saturation

A

O2 saturation

19
Q

The percent of oxygen bound to hemoglobbin

A

O2 saturation

20
Q

Determines if hemoglobin is carrying the amount of oxygen it is capablle of carrying

A

O2 saturation

21
Q

A ccalculation of the nonrespiratory part of acid-base balance based on the PaCO2, HCO3, and hemoglobin

A

Base excess (or deficit)

22
Q

Normal range of Analyte pH

A

7.35-7.45

23
Q

Normal range of analyte PaO2

A

80-100 mm Hg

24
Q

Normal range of analyte PaCO2

A

35-45 mm Hg

25
Q

Normal range of analyte HCO3

A

22-26 mEq/L

26
Q

Normal range of analyte O2 saturation

A

97-100%

27
Q

Normal range of analyte base excess (or deficit)

A

(-2)-(+2) mEq/L

28
Q

Arterial Puncture Sites

A

Radial Artery
Brachial Artery
Femoral Artery

29
Q

The first choice and most commonly used site

A

RADIAL ARTERY

30
Q

Advantages of Radial artery

A

presence of good collateral circulation

easy to palpate

less chance of hematoma

reduced risk of accidentally puncturing a vein or
damaging a nerve

31
Q

Disadvantages of Radial artery

A

considerable skill is required to puncture it successfully

might be difficult to locate on patients with hypovolemia
or low cardiac output

32
Q

The second choice used site

A

BRACHIAL ARTERY

33
Q

Advantages of brachial artery

A

large and can be relatively easy to locate and palpate

preferred artery if a large volume of blood must be
collected

less pauinful than a radial artery puncture

34
Q

Disadvantages of brachial artery

A

no direct collateral circulation

deeper and harder to puncture

Difficult to palpate on obese patients

lies close to the basilic vein

close to median nerve

increased risk of hematoma

35
Q

The largest artery used for arterial puncture

A

Femoral Artery

36
Q

Advantages of femoral artery

A

large and easily palpated and punctured

only site where arterial sampling is possible

37
Q

disadvantages of femoral artery

A

poor direct collateral circulation

lies close to femoral vein

increased risk of infection

dislodging plaque buildup

requires extended monitoring for hematoma formation

PMLS midterm lec (3 decks)

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