That's the actual question? Wow, I can see why you would be confused with which diluent to select especially without any indication of what concentration is available. However, if the picture is included with the math problem, it illustrates 4.6 mL diluent and therefore you would select 200,000 units and solve and end up with 1.5 mL. No picture.....no answer for diluent.
I've always been taught with reconstitution to locate the directions on the label to identify the type and volume of mandatory diluent. It's not a guessing game or a critical thinking situation
in my opinion
...it's called follow the manufacture's specific directions very carefully and get another nurse to verify.
However, critically thinking (in my opinion for my instructor) would indicate the final question in the math problem still remains the same how many ML would you give
and I know 1.5 mL
is safe for large muscles.
Its also the correct answer with the illustration.
I hate tricky questions.
However, we do learn from them and they will make us think.
Don't worry to much you'll ace the exam!