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Patient B: A patient is recovering from major surgery and is suffering some Lasi

ID: 3505465 • Letter: P

Question

Patient B: A patient is recovering from major surgery and is suffering some Lasix) is given twice a day. Selected lab values one edema. A loop diuretic (e.g arterial pH PeoHCO week after surgery Po, (mmHg)(mEqL) (mEq/L) (mmig) (mEq/L) 7.46 1. What type of acid base imbalance is this person experiencing (based on the blood gas values)? 2. How is his body compensating to keep the blood pH near normal? 3. What TWO O factors will contribute to his low K' concentration? (Normal K 3.3-5. mEq/L) will Patient C: A 14 year old boy who had never been immunized against poliomyelitis contracted the disease late in the summer. He was hospitalized and required the use of a respirator during the acute phase of his illness. When he appeared to be recovering, he was taken off the respirator with no ill effects. Several days later, analysis of his blood revealed the following: Pco-71 mm Hg HCO,,-37 mEqI arterial pH-7.36 1. What type of acid base imbalance is this person experiencing (based on the blood gas values)? 2. How is his body compensating to keep the blood pH near normal? 3. Why is the Pco value so high?

Explanation / Answer

Patient B:

Suffering from metabolic alkalosis

As normal Hco3 levels are comparatively less than the above here increased level indicating Metabolic alkalosis

2)Body compensation:

By increasing the concentration pco2 levels so that blood ph comes normal

3)Low k+ concentration:

Extra cellular k+shift is accompanied by intercellular H+ and Na+ movement

H+-K+ Exchanger is up regulated by the potassium depletion

Patient C:

1)Respiratory acidosis

As the normal levels of pCO2 are 35-45mm Hg here increased level indicating respiratory acidosis

Body compensating by increasing bicarbonate levels so that blood ph comes normal

As it neutralises the carbonic acid formed by CO2