A 28-year-old woman has been sick with the flu for the past week, vomiting several times every day. She is having a difficult time keeping solids and liquids down, and has become severely dehydrated. After fainting at work, she was taken to a walk-in clinic, where an IV was placed to help rehydrate her. Arterial blood was drawn first, revealing the following: pH 7.50 pCO2 40 mm Hg pO2 95 mm Hg Hemoglobin - O2 saturation 97% [HCO3-] 32 meq / liter Questions: 1. How would you classify her acid-base disturbance? 2. Why might excessive vomiting cause her particular acid-base disturbance?
A 28-year-old woman has been sick with the flu for the past week, vomiting several times every day. She is having a difficult time keeping solids and liquids down, and has become severely dehydrated. After fainting at work, she was taken to a walk-in clinic, where an IV was placed to help rehydrate her. Arterial blood was drawn first, revealing the following:
pH |
7.50 |
pCO2 |
40 mm Hg |
pO2 |
95 mm Hg |
Hemoglobin - O2 saturation |
97% |
[HCO3-] |
32 meq / liter |
Questions:
1. How would you classify her acid-base disturbance?
2. Why might excessive vomiting cause her particular acid-base disturbance?
3. How do the kidneys respond to this acid-base disturbance?
4. What is the respiratory response?
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