accurate detailed answers || ||
What is the order of priority for obtaining arterial blood gases? - ✔✔1.) Radial
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2.) Brachial
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3.) Femoral (if B/P low 60/40)
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How can you confirm that collateral blood flow is present? - ✔✔A positive modified allens
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test
The hand should pink up within 1-2 seconds after releasing the ulnar artery.
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For bleeding after an ABG how long should you apply pressure? - ✔✔For a minimum of 5
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mins
What happens to PaO2 and PaCO2 if the sample has an air bubble? - ✔✔PaO2 increases
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PaCO2 decreases ||
What happens to PaO2 and PaCO2 if the sample has not been iced in a timely manner? -
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✔✔PaO2 decreases ||
PaCO2 increases ||
Sampling Hazards & problems blood gas sample - ✔✔- disruption of blood flow
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(hematoma)
- clotting
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- bleeding (hold pressure min 5 mins)
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,- vessel spasm
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- tissue trauma (muscles, bone, nerves)
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- anticoagulant tx (heparin) apply longer pressure
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- air bubbles sample
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- improper cooling (sample not iced)
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- too much liquid heparin
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Air bubbles in sample - ✔✔- CO2 decrease toward 0 torr
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- O2 increase/decrease towards 150 torr
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- pH increase
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Improper cooling (sample not iced) - ✔✔- CO2 increase
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- O2 decrease
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- pH decrease
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Too much liquid heparin in sample - ✔✔- CO2 decrease towards 0
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- O2 increase/decrease towards room air 150
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- pH decrease towards 7.0
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Capillary heel sticks drawn with infants measure what values? - ✔✔pH and PaCO2
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What value is not measured with a Capillary heel stick? - ✔✔PaO2
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How much waste solution should be drawn from an arterial line when drawing an ABG and
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why? - ✔✔3-5 mL of waste; to get heparin out of the line.
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, transducer is above catheter pressure is - ✔✔lower than actual
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transducer is below catheter pressure is - ✔✔higher than actual
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art line complications - ✔✔- thrombosis/embolism
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- bleeding
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- infection
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- hematoma
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- arterial spasm
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Serveringhaus electrode measures - ✔✔PCO2 || || || ||
Clark electrode measures - ✔✔PO2
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Sanz electrode measures - ✔✔pH (Acid-base balance)
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How do you analyze blood gas data? - ✔✔In the Levey-Jennings Chart
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(Values should remain within 2 standard deviations of the mean)
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What is indicated if you are to get an "Out of Control" situation on the Levey-Jennings
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chart? - ✔✔The electrode needs to be replaced or recalibrated.
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What is point of care testing? - ✔✔It's testing at the bedside that reduces the time from
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sample to report. || || ||