Practical note that does not fit anywhere else. Whatever you conclude from this topic, write down what you did and when. The single most useful thing in your own records is not any individual result; it is that they are dated and consecutive.
Topic summary
Validating a calculator against hand arithmetic — what changed since
This is a generated summary. It shows the 9 most-liked posts from a topic of 138, in their original order, with the accepted answer included where one exists. It is a reading aid and it will miss nuance — the full topic is the record.
n.osei, post #13: Why calculators are not medical advice: they do arithmetic. Medical decisions are not arithmetic. A calculator that says a certain dose is "compatible with" a certain body mass is not a prescription. Go to post
For anyone arriving from a search: the marked solution above is the direct answer, and the replies underneath it add the caveats that make it safe to use.
k.batista, post #40: post #39 answers the question as asked. The question underneath it is different. Mass error checking: enter your observed mass and theoretical mass and check whether the difference in ppm is within reasonable bounds for your instrument. Useful sanity check on LC-MS results. Go to post
Precision and significant figures: the calculators do not round to match your input precision. If you input values to one decimal place, the output might have more. Use significant figures appropriate to your input precision.
t.tulloch, post #55: Precision and significant figures: the calculators do not round to match your input precision. If you input values to one decimal place, the output might have more. Use significant figures appropriate to your input precision. Go to post
Why calculators are not medical advice: they do arithmetic. Medical decisions are not arithmetic. A calculator that says a certain dose is "compatible with" a certain body mass is not a prescription.
Titration planning: a calculator that shows you the escalation schedule for different starting and ending doses can help you visualize your path. Actual path might be slower or adjusted for tolerability.
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Read the full topic (138 posts)
This topic was referenced in
- Second pass at: The mass-error checker and its intended scopeData & Tools › Calculators · 74 replies
- Second pass at: The storage lookup and where its data comes fromData & Tools › Calculators · 42 replies
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