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Author Archives: Basil Muharb

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Lab case 400

Posted on March 21, 2023 by Basil Muharb

21-year-old man brought for ED for impaired mental state, he was extremely agitated and needed 6 staff members to restrain him for IV access and sedation. His venous blood gases showed the following:

PH = 6.9

pCO2 = 24 mmHg

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Posted in Lab Cases

Lab case 399 Interepretation

Posted on February 22, 2023 by Basil Muharb

Question 1: 

PH = 7.43 that is with in normal range, more toward alkalotic spectrum

HCO3 = 39.9, that is elevated so we have metabolic alkalosis. Next we need to check the compensation process.

Continue reading →

Posted in Lab Cases

Lab case 399

Posted on February 14, 2023 by Basil Muharb

38 year old lady presented to the emergency department with recurrent vomiting. She was found to have a slipped lapband. Her venous blood gases showed the following

PH = 7.43

pCO2 = 61 mmHg

Continue reading →

Posted in Lab Cases

Lab case 398 interepretation

Posted on February 12, 2023 by Basil Muharb

Question 1:

PH = 7.14, that is severe acidaemia

pCO2 = 53 mmHg, So we have respiratory acidosis. Next we will calculate the compensation.

Continue reading →

Posted in Lab Cases

Lab case 398

Posted on February 7, 2023 by Basil Muharb

75 year old man was brought to ED by ambulance in VF cardiac arrest , CPR in progress. His venous blood gases showed the following

PH = 7.14

pCO2 = 53 mmHg

Continue reading →

Posted in Lab Cases

Lab case 397 Interpretation

Posted on February 5, 2023 by Basil Muharb

Question 1:

PH = 7.32 ( less than 7.35) so, we have mild acidaemia.

PCO2 = 48 (on arterial blood gas > 40), so we have respiratory acidosis.

Continue reading →

Posted in Lab Cases

Lab case 397

Posted on January 31, 2023 by Basil Muharb

32-year-old man presented to ED with an asthma attack. on 3L O2, his arterial blood gases showed the following:

PH = 7.32

Continue reading →

Posted in Lab Cases

Lab case 396 interpretation

Posted on January 31, 2023 by Basil Muharb

Question 1:

PH = 7.30 that is mild acidaemia.

HCO3 = 16 mmol/L (>24) so we have metabolic acidosis.

Next, we need to calculate the anion gap and the compensation (using Winter’s formula)

Continue reading →

Posted in Lab Cases, Uncategorized

Lab case 396

Posted on January 24, 2023 by Basil Muharb

61-year-old man presented to ED with hypoglycemia that was difficult to correct with oral and IV dextrose. His venous blood gases showed the following.

PH = 7.30

PCO2 = 33   mmol/L

Continue reading →

Posted in Lab Cases, Uncategorized

Lab case 395 Interpretation

Posted on January 24, 2023 by Basil Muharb

Question 1:

PH = 7.29 That is moderate acidaemia

PCO2 = 60 mmHg, that is high (>40). So, we have respiratory acidosis.

Next, we need to look at HCO3 to determine if it is acute or chronic respiratory acidosis.

Continue reading →

Posted in Lab Cases

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