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NUR425 ABGs EXAM QUESTIONS AND 100% CORRECT ANSWERS
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NUR425 ABGs EXAM QUESTIONS WRITTEN BY EASTONAND 100% CORRECT ANSWERS
, NUR425 ABGs EXAM QUESTIONS AND
100% CORRECT ANSWERS
____________ -balance in body needed to sustain life
homeostasis
T/F Acid-base imbalance is a disease
FALSE: it is just a SYMPTOM of disease (not disease itself)
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What are some things that can cause an acid-base imbalnce?
DM, COPD, Kidney Disease, GI disturbances
ABG specimen comes from ___________ blood, thus the __
arterial; A
ABG can be done via a __________ stick to the artery (radial, brachial, femoral)
direct
Who would need frequent ABGs?
patients on a mechanical ventilatotr
if frequent ABGs needed, an _____________ ___________ is usually placed
arterial line
arterial blood shows us how well the patient just ___________ their blood in their
lungs
oxygenated
How long to wait after a change to recheck an ABG?
a minimum of 20 min
Allow a minimum of _________ minutes after suctioning, vent, or oxygenation
CHANGES to obtain an ABG
20
What is good range for PaO2?
80-100mmHg
What is good range for SaO2?
>95%
WHat ABG value tells us how MUCH oxygen is in the blood?
PaO2
What ABG value tells us what percent of HEMOGLOBIN are saturated with oxygen
(oxyhemoglobin)?
SaO2
Which ABG value tells us how much CO2 is in the blood?
PaCO2
Higher level of CO2 in blood tells us what?
that they didn't really get rid of very much CO2 (did not blow out a lot of CO2)
Very low levels of CO2 tells us what?
that you did too good of job getting rid of CO2
if you exhale deeply and quickly what might this cause
low CO2
Which ABG value tells us how much bicarbonate is in the blood?
HCO3
Which ABG value tells us how the lungs are working?
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