Quiz
Acid Base Balance
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Perguntas do quiz (13)
1Normal pH: 7.35-[blank_start]7.45[blank_end]
[H+]: 35-[blank_start]45[blank_end]
Acidosis pH: [blank_start]6.9-[blank_end]7.35
Alkalosis pH: 7.45-[blank_start]7.8[blank_end]- A7.45
- B45
- C6.9
- D7.8
2Physiological buffers
- Abicarbonate
- Bproteins
- Cphosphate
- Dglucose
- Eglyocogen
3Enzyme used for the reversible reaction between CO2 and H2O producing Bicarbonate ion:
[blank_start]Carbonic[blank_end] [blank_start]anhydrase[blank_end]- ACarbonic
- Banhydrase
4Largest source of physiological buffers
- Abicarbonate buffer
- Bproteins- Hb
- Cproteins- dietary
- Dphosphate
5Acid Base balance:
[blank_start]H+[blank_end] are first [blank_start]buffered[blank_end] by [blank_start]physiological[blank_end] buffers
Acid products are [blank_start]eliminated[blank_end] via the lungs and [blank_start]kidneys[blank_end] maintaining H+ within normal limits- Abuffered
- BH+
- Cphysiological
- Deliminated
- Ekidneys
6Metabolic acid production (ingestion causes minimal effects)
[blank_start]Sulfuric acid[blank_end]- oxidation of sulfur containing amino acids
Phosphoric acid- [blank_start]dietary phosphate[blank_end]
Lactic acid- [blank_start]anaerobic respiration[blank_end]
ketone bodies- [blank_start]Bhydroxybutyrate[blank_end] and oxaloacetate. May be high in [blank_start]type 1 diabetes[blank_end].- ASulfuric acid
- Bdietary phosphate
- Canaerobic respiration
- DB hydroxybutyrate
- Etype 1 diabetes
- Ftype 2 diabetes
7Carbonic anhydrase and CO2
CO2 + H20 <--> [blank_start]H2CO3[blank_end] <--> H+ + HCO3
[blank_start]H+[blank_end] produced from respiration is buffered by bicarbonate and Hb
In red blood cells: [blank_start]takes up[blank_end] CO2, [blank_start]converts to[blank_end] H+ and HCO3-
In lungs: Take up HCO3- and H+ and converts it into CO2 due to the [blank_start]Haldone effect[blank_end].
The Haldone Effect:
Oxygenated Hb = [blank_start]a stronger acid[blank_end] than deoxygenated Hb therefore in the reversible reaction, there is a shift to the [blank_start]right[blank_end] therefore more [blank_start]CO2 and H2O[blank_end] is produced as more H+ is available- AH2CO3
- BH+
- Ctakes up
- Dconverts to
- EHaldone effect
- Fa stronger acid
- Ga weaker acid
- Hright
- Ileft
- JCO2 and H2O
- Kbicarbonate ion
8Respiratory acidosis
- Aincreased PaCO2
- Bincreased H+ in underventilation
- Cdecreased PaCO2
- DDecreased H+ in hyperventilation
9metabolic acidosis
- Anon respiratory increase in H+
- BNon respiratory decrease in H+
10The word for :
if respiratory or metabolic is excessively high or low, the other system will counteract to appose this change, bringing overall Acid/Base imabalance back to normal- Acompensation
- Bcounteraction
- Ccompassion
11To measure PaCO2, PaO2 and PH use what:
- Aan electrode
- Bderived from HCO3- concentration
- Cfrom base excess
12To measure concentration of HCO3-
- Aderived from PH and PaCO2 using an equation
- BElectrode
- CBase excess
13HCO3-
Production is related to level of [blank_start]CO2[blank_end] in the blood
Each KPa of CO2 will increase HCO3 by [blank_start]1 mmol/ litre[blank_end]
Other factors effecting HCO3- are metabolic acidosis, alkalosis and [blank_start]renal HCO3 production[blank_end]
proportionate change in PaCO2 and HCO3- suggests a [blank_start]respiratory acid basse imbalance[blank_end]
A disproportionate change would mean a [blank_start]metabolic acid imbalance[blank_end].- ACO2
- B1 mmol/ litre
- C2 mmol/litre
- Drenal HCO3 production
- Erespiratory acid basse imbalance
- Fmetabolic acid imbalance
Informações
- Descrição
- RCR1 Quiz sobre Acid Base Balance, criado por Nina Liebenberg em 22-02-2017.
- Autor
- Nina Liebenberg
- Idioma
- English
- Visualizações
- 1
- Etiquetas
- Avaliação
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