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Health: Oh no… I can’t stand math. I’m not bad at it, but it’s definitely not my thing.
(I mean, as long as I’m not doing calculus all day… I can definitely handle algebra, geometry, etc on a regular basis, but let’s just say there’s a reason why I’m not becoming an engineer or mathematician.)
kayla: I was wondering that as well. For me (if I don’t become a Hatzolah [or female equivalent when someone starts one] member myself), I think that it would be a plus in a guy.
I can see, though, that some people might not like the disruption it can cause in the home, the constant dedication, etc- it might be a job full of zechuyos, but it can also disrupt the family timetable.
writersoul -“Health: Oh no… I can’t stand math. I’m not bad at it, but it’s definitely not my thing.”
This is an example of a medical math problem:
“Practice Problem 1:
ABG’s: pH 7.31 PCO2 55 mm Hg HCO3- 28 mEq/L
Normal values for ABG’s:
pH range 7.35 – 7.45
carbon dioxide partial pressure, 35 – 45 mm Hg
bicarbonate, 24 – 28 mEq/L”
Health: Assuming I’m reading this right, that means that the pH is too low, the PCO2 is too high, and the HCO3 is on the high end of normal. I just don’t see the math problem.
Ah, you know what, I’ll just go to college first :).
Nu? So a partially compensated resp acidosis.
writersoul -“Health: Assuming I’m reading this right, that means that the pH is too low, the PCO2 is too high, and the HCO3 is on the high end of normal. I just don’t see the math problem.
Ah, you know what, I’ll just go to college first :).”
Sorry; I was just showing the problem, not asking any questions.
Here are the questions:
“Name the disorder:
Respiratory acidosis (with or without renal compensation)
Respiratory alkalosis (with or without renal compensation)
Metabolic acidosis (with or without respiratory compensation)
Metabolic alkalosis (with or without respiratory compensation)
Suggest a possible cause. For example, a cause of chronic respiratory acidosis is emphysema.”
Ctrl Alt Del -“Nu? So a partially compensated resp acidosis.”
Sorry; you are wrong. I got this problem out of a book.
Answer:
“pH is too low – acidosis; PCO2 is too high, would cause acidosis or correct alkalosis; HCO3- is normal, neither causing nor correcting imbalance
high PCO2 is correllated with low pH, which is consistent with patient’s report
because PCO2 is causing the problem, this is respiratory acidosis; because bicarbonate is normal, there is no compensation
possible cause: cardiac arrest”
Sorry Health, you are incorrect. For the purposes of ABG interpretation normal hco3 is 22 to 24. Sometimes you can use 26. No one uses 28, ever. If they do, they are wrong too. Aside from this, any movement of hco3 will be an attempt to correct the acidosis and would be considered “partial” compensation. The fact it has moved out of norm means its a definite compensation but only considered partial because the pH remains acidotic.
See: Clinical Application of Blood Gases, Shapiro, Harrison, Cane, Templin. (THE final word on all things ABG related (even the mention of “the Shapiro book” inspires awe)
Principles of Anatomy and Physiology Tortora, Grabowski.
Clinical Application of mechanical Ventilation, Chang.
These are references I value somewhat more than Tyler Junior College.
Ctrl Alt Del -“Sorry Health, you are incorrect. For the purposes of ABG interpretation normal hco3 is 22 to 24. Sometimes you can use 26. No one uses 28, ever. If they do, they are wrong too.
See: Clinical Application of Blood Gases, Shapiro, Harrison, Cane, Templin. (THE final word on all things ABG related (even the mention of “the Shapiro book” inspires awe)”
“These are references I value somewhat more than Tyler Junior College.”
I do too! I just picked them because that’s what came out on Yahoo search.
As far as what you wrote, Tyler is right and the books you quoted are wrong.
Did you ever here of a website called Lab Tests Online?
This is the site of the AACC!
Here is their reference range:
“CO2
Age Conventional Units SI Units
Adult 23-29 mEq/L 23-29 mmol/L
>60 years 23-31 mEq/L 23-31 mmol/L
>90 years 20-29 mEq/L 20-29 mmol/L
from Tietz Textbook of Clinical Chemistry and Molecular Diagnostics. Burtis CA, Ashwood ER, Bruns DE, eds. 5th edition, St. Louis: Elsevier Saunders; 2011.”
There is a possibilty that your book(s) developed a different
reference range than Tietz’s.
We shall have to agree to disagree.
Regardless, it still doesn’t look like a “math problem” per se…
jewishfeminist02 -“Regardless, it still doesn’t look like a “math problem” per se…”
How about this one?
“A-a O2 Gradient = [ (FiO2) * (Atmospheric Pressure – H2O Pressure) – (PaCO2/0.8) ] – PaO2 from ABG
Normal Gradient Estimate = (Age/4) + 4″
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