Order thiamine HCl 20 mg IM tid supply is 10 ml múltiple dose vial of vitamin B1 (thiamine HCl) 100 mg/mL. How much mL need to give?

0.2 ml

Explanation:

The only information in this question you need is the dose ordered and the fact that the bottle has at least 1 ml of 100 mg of medication. Ignore everything else in the question. You need 20 out of 100 mg. One fifth of 100 is 20 and one fifth of 1 ml is 0.2, so you need to give 0.2 ml of medication.

Or.

1000 mg            20 mg

        = 10(20) and 1000(x),      200=1000x

10 ml                  x

Now solve for x.

200/1000=x    

0.2 =x

0.2 ml

Or

100 mg          20mg

          =   1(20) and 100(x),     20=100x

1ml                     x

Now solve for x

20/100=x

0.2=x

0.2 ml

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between the two muscle layers is the myenteric or auerbach's plexus, which controls peristalsis. in the colon, the muscularis externa is much thicker because the feces are large and heavy, requiring more force to push along. the stomach has a third layer of muscularis externa: the inner oblique layer.