PTCB Exam Study
1. If you have 25% dextrose and 10% dextrose,how many ml of each would youneed to make
1000ml of a 20% solution?
Answer: 667ml of 25% and 333ml of 10%
2. An IV has been ordered to run at 2.5gtts/min. The IV contains 875mg of Amoxicillin in a
total of 250ml. How many mg of Amoxicillin will be given tothe patient per hour if the IV is
set to deliver 15gtts/ml?
Answer: 35mg/hr
3. What is the term for the process by which substances are taken up andtransported to the
bloodstream?
Answer: Absorption
4. If a prescription calls for 375mg of penicillin per day for 10 days how muchof a
250mg/5ml suspension should be dispensed?
Answer: 75ml
5. The expiration date on a bottle of Vicodin is 5/99.When does this drugexpire?
Answer: 12:00AM 6/1/99
6. What is the sig code for every night at bedtime?
Answer: qhs
7. The directions for a medication read, "i - ii gtts as q 4 h x 10 days".What isthe meaning of
"as"?
Answer: in left ear
8. The doctor prescribes Robitussin AC, one pint. How many mls are neededfor one pint?
Answer: 480ml
9. A prescription reads "ii gtts au qid." What auxillary label should be affixedto the container?
Answer: for the ear
10. Pseudoephidrine is contrandicated with which of the following?
Answer: hig bloodpressure
11. If the dose for Quaifenesin is 2.5ml, how many doses will a patient receiveif given a 12
ounce bottle?
Answer: 144
12. What does enteric coated mean?
Answer:special coating to prevent dissolution isstomach