N4581 - Exam 1 (Complex Needs -
Reid)58 complete solutions.
N4581 - Exam 1 (Complex Needs -
Reid)58 complete solutions.
List the normal ABG values;
pH
PaCO2
HCO3
PaO2
SaO2 –
ANSWER pH: 7.35-7.45
PaCO2: 35-45
HCO3: 22-28
PaO2: 80-100
SaO2: 90
What is the difference between SaO2 and PaO2 and SpO2? - ANSWER SaO2: oxygen saturation, percent
of HgB saturated w/ O2, invasive need blood draw
PaO2: oxygen dissolved IN blood, "p" for partial ∵ other gases dissolved in blood too
SpO2: non-invasive method of O2 sat, done with pulse oximetry
How long does it take for lung control of ABG to respond maximally?
Kidneys? - ANSWER lungs: reacts w/in minutes, maximum effect in hours
kidneys: maximum effect in 2-3 days
When collecting ABGs from a radial arterial site, what should be done prior?
What should be done after drawing ABG? - ANSWER perform Allen's test
*pt clenches fist, apply pressure to radial & ulnar arteries, pt opens fist, observe blanching in hand,
remove pressure on arteries, color should return in <7 seconds=negative*
, N4581 - Exam 1 (Complex Needs -
Reid)58 complete solutions.
after: PUT ON ICE!! analyze w/in 10-15min
Why is recording patient temperature at time of ABG draw important? (3) - ANSWER each degree ↑ or
↓ leads to potential error in reading:
7% in O2
3% in CO2
0.14 in pH
(just know what is effected, not how exact %)
Things to remember before drawing ABGs (3) - ANSWER wait 20-30min after ∆ in O2/ventilation settings
check for order to discontinue O2/vent prior to ABG
wait 20-30min after suctioning
What is the bicarb to carbonic ratio of the body? - ANSWER 20 bicarb to 1 carbonic acid
remember pH is basic in nature so more bicarb (base) makes sense!
Describe the "baby naming" method of ABGs - ANSWER First name: fixed/not (un/compensated)
Middle: type (resp/metabolic)
Last: pH status (acidic/basic)
Title: O2 status (hypoxemia)
Common causes of metabolic acidosis (4) - ANSWER DKA
poison ingestion
renal failure
tissue hypoxia (lactic acid production from working out too hard)
Common causes of respiratory acidosis (3) - ANSWER respiratory failure like COPD
pneumonia
Reid)58 complete solutions.
N4581 - Exam 1 (Complex Needs -
Reid)58 complete solutions.
List the normal ABG values;
pH
PaCO2
HCO3
PaO2
SaO2 –
ANSWER pH: 7.35-7.45
PaCO2: 35-45
HCO3: 22-28
PaO2: 80-100
SaO2: 90
What is the difference between SaO2 and PaO2 and SpO2? - ANSWER SaO2: oxygen saturation, percent
of HgB saturated w/ O2, invasive need blood draw
PaO2: oxygen dissolved IN blood, "p" for partial ∵ other gases dissolved in blood too
SpO2: non-invasive method of O2 sat, done with pulse oximetry
How long does it take for lung control of ABG to respond maximally?
Kidneys? - ANSWER lungs: reacts w/in minutes, maximum effect in hours
kidneys: maximum effect in 2-3 days
When collecting ABGs from a radial arterial site, what should be done prior?
What should be done after drawing ABG? - ANSWER perform Allen's test
*pt clenches fist, apply pressure to radial & ulnar arteries, pt opens fist, observe blanching in hand,
remove pressure on arteries, color should return in <7 seconds=negative*
, N4581 - Exam 1 (Complex Needs -
Reid)58 complete solutions.
after: PUT ON ICE!! analyze w/in 10-15min
Why is recording patient temperature at time of ABG draw important? (3) - ANSWER each degree ↑ or
↓ leads to potential error in reading:
7% in O2
3% in CO2
0.14 in pH
(just know what is effected, not how exact %)
Things to remember before drawing ABGs (3) - ANSWER wait 20-30min after ∆ in O2/ventilation settings
check for order to discontinue O2/vent prior to ABG
wait 20-30min after suctioning
What is the bicarb to carbonic ratio of the body? - ANSWER 20 bicarb to 1 carbonic acid
remember pH is basic in nature so more bicarb (base) makes sense!
Describe the "baby naming" method of ABGs - ANSWER First name: fixed/not (un/compensated)
Middle: type (resp/metabolic)
Last: pH status (acidic/basic)
Title: O2 status (hypoxemia)
Common causes of metabolic acidosis (4) - ANSWER DKA
poison ingestion
renal failure
tissue hypoxia (lactic acid production from working out too hard)
Common causes of respiratory acidosis (3) - ANSWER respiratory failure like COPD
pneumonia
