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Category Archives: Lab Cases

Clinical Cases based on lab results

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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

Lab case 395

Posted on January 17, 2023 by Basil Muharb

72 year old man with history of COPD presented with shortness of breath. His chest auscultation revealed bilateral wheezes.

His arterial blood gas on 40% O2 showed the following:

PH = 7.29

PCO2 = 60 mmHg

Continue reading →

Posted in Lab Cases, Uncategorized

Lab case 394 Interpretation

Posted on January 17, 2023 by Basil Muharb

 Answers:

 Question 1:

PH = 7.475, that is mild alkalaemia.

pCO2 = 24 mmHg. So, we have respiratory alkalosis.

Continue reading →

Posted in Lab Cases, Uncategorized

Lab case 394

Posted on January 10, 2023 by Basil Muharb

14-year-old girl, COVID day 2, presented with delirium. Her venous blood gases showed the following:

Ph = 7.475

pCO2 = 24 mmHg

Continue reading →

Posted in Lab Cases, Uncategorized

Lab case 393 interepretation

Posted on January 10, 2023 by Basil Muharb

PH = 7.28, that is moderate acidaemia.

PCO2 = 73 mmHg. This means we have respiratory acidosis.

Continue reading →

Posted in Lab Cases, Uncategorized

Lab case 393

Posted on January 3, 2023 by Basil Muharb

An alcoholic person with severe peripheral neuropathy was brought to ED with low GCS. He had multiple vomiting episodes the day before being brought to ED.

His venous blood gases showed the following:

PH = 7.28

Continue reading →

Posted in Lab Cases

Lab case 392 interpretation

Posted on January 3, 2023 by Basil Muharb

Answers:

PH = 7.10, that is severe acidaemia.

HCO3 = 11 mmol/L, this means we have metabolic acidosis.

Next, we need to calculate the anion gap and the compensation.

Continue reading →

Posted in Lab Cases, Uncategorized

Lab case 392

Posted on December 28, 2022 by Basil Muharb

48-year-old alcoholic woman presented with confusion; her venous blood gases showed the following:

PH = 7.10

pCO2 = 36 mmHg

Continue reading →

Posted in Lab Cases

Lab case 391 interpretation

Posted on December 27, 2022 by Basil Muharb

Answers:

PH = 7.579, that is severe alkalaemia

HCO3 = 45 mmol/L. So, we have metabolic alkalosis. Next, we need to calculate the expectation. For metabolic alkalosis we use the following formula:

Continue reading →

Posted in Lab Cases

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