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Tags

#exam #nephrology

Question

Five Steps to Solving Acid Base Problems

Answer

(2) What is the primary problem?:

Compare HCO3 vs pCO2

(3) Is there adequate compensation?

met acid = 1:1 (pCO2)

met alk = 1:0.7 (pCO2)

R acid A = 1:10 (pCO2)

R acid C = 3:10 (pCO2)

R alk A = 2:10 (pCO2)

R alk C = 5:10 (pCO2)

(4) a) What is the Anion Gap?

AG = Na – (Cl + HCO3)

--Normal is 12 +/‐ 2 mmol/L

b) Is there an Osmolar Gap?

Osmolar gap = Osm(meas) – Osm(calc)

Osm(calc) = 2Na + Urea + Glucose

--Normal is upto 10 mosm/kg

(5) Is there another metabolic disorder?

Does the Δ AG = Δ HCO3?

Δ AG = Δ HCO3 (only AGMA)

Δ AG < Δ HCO3 (AGMA + met alk)

Δ AG > Δ HCO3 (AGMA + NAGMA)

Tags

#exam #nephrology

Question

Five Steps to Solving Acid Base Problems

Answer

?

Tags

#exam #nephrology

Question

Five Steps to Solving Acid Base Problems

Answer

(2) What is the primary problem?:

Compare HCO3 vs pCO2

(3) Is there adequate compensation?

met acid = 1:1 (pCO2)

met alk = 1:0.7 (pCO2)

R acid A = 1:10 (pCO2)

R acid C = 3:10 (pCO2)

R alk A = 2:10 (pCO2)

R alk C = 5:10 (pCO2)

(4) a) What is the Anion Gap?

AG = Na – (Cl + HCO3)

--Normal is 12 +/‐ 2 mmol/L

b) Is there an Osmolar Gap?

Osmolar gap = Osm(meas) – Osm(calc)

Osm(calc) = 2Na + Urea + Glucose

--Normal is upto 10 mosm/kg

(5) Is there another metabolic disorder?

Does the Δ AG = Δ HCO3?

Δ AG = Δ HCO3 (only AGMA)

Δ AG < Δ HCO3 (AGMA + met alk)

Δ AG > Δ HCO3 (AGMA + NAGMA)

status | not learned | measured difficulty | 37% [default] | last interval [days] | |||
---|---|---|---|---|---|---|---|

repetition number in this series | 0 | memorised on | scheduled repetition | ||||

scheduled repetition interval | last repetition or drill |

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