Acid/Base- SG Flashcards
1
Q
ABGs are frequently used to detect and monitor indices of what 3 things?
A
- Oxygenation
- Ventilation
- Acid-base balance
2
Q
ABGs quantify levels of _____ & ______.
A
- carboxyhemoglobin
- methemoglobin
3
Q
ABG
- Blood is drawn usually from what artery?
- Sometimes drawn from what other 2 arteries?
- Blood is collected with _____ and placed on ice and taken quicky to lab for prompt analysis
- Results are usually back within _____.
A
- Radial
- Brachial or femoral aa
- anticoagulant (heparin)
- 5 - 15 mins
4
Q
Oxygenation
- The pO2 is just used in determining ____.
- NOT in the determination of _____.
- Is pO2 from ABG or pulse ox more reliable way to check oxygenation?
A
- How well pt is oxygenating
- NOT: acid base conditions
- pO2 from ABG is more reliable than pulse ox.
5
Q
- Body maintains precise control of ____ to maintain homeostasis
- ____ are used to keep pH in narrow range.
A
- Hydrogen ions
- Buffer systems
6
Q
- Acidemia is pH
- Alkalemia is pH >____
A
- <7.35
- >7.45
7
Q
pH of blood
A
Acidemia & Alkalemia
8
Q
Acid/Base Disorder
A
Acidosis & Alkalosis
9
Q
Tx for acid/base disturbances?
A
Management of underlying disease
(can have up to 3 disorders)
10
Q
- 2 types of compensation for acid/base disorders?
- Which one is rapid and which is slow?
A
- Respiratory compensation (rapid)
- Metabolic compensation (days - weeks)
11
Q
Acid/Base
- A primary respiratory problem involves ___
- If greater than ___ is acidosis
- If less than ____ is alkalosis
A
- pCO2
- >45 = acidosis
- <35 = alkalosis
12
Q
Acid/Base
- Primary metabolic problem involves ____.
- If greater than ___ is alkalosis
- If less than ____ is acidosis
A
13
Q
- pH: >7.45
- Disturbance: decreased pCO2 (<35)
- Secondary response: decreased HCO3
A
Respiratory Alkalosis
14
Q
- pH: >7.45
- Disturbance: increased HCO3 (>26)
- Secondary response: increased pCO2
A
Metabolic Alkalosis
15
Q
- pH: <7.35
- Disturbance: increased pCO2 (>45)
- Secondary response: increased HCO3
A
Respiratory acidosis