Math for Meds Chapters 8,9,10 and 11

What is the average IM dose?

0.5 mL and 3 mL

What are the most rapid injection sites for subcutaneous injections?

Abdomen and Upper arm

Regular insulin is a

Clear Solution and is Fast Acting

NPH insulin is

Cloudy and Intermediate acting slower start but longer action

5 and 10 mL syringes are calibrated in _________

Fifths

Recombinant DNA insulins are

Humilin Novolin

Tuberculin syringes are calibrated in _________

Hundredths 0.5 or 1 mL

What is the most commonly used Parenteral administration route?

IV, IM and Sub Q

What are Parenteral medications measured in?

Metric Ratio Percentage Unit mEq

What are the 2 earliest DNA insulins? What are they made from?

R regular and N NPH they are made from Recombinant DNA (spliced DNA)

Standard 3 mL syringe is calibrated in ________

Tenths

Solutions measured as Milliequivalents

Trade Name: Potassium Acetate 40 mEq/ 20 mL (2 mEq/mL) 20 mL Single Dose Vial 1.) What is the strength of this solution in mEq per mL? • 2 mEq/mL 2.) If you were asked to prepare 40 mEq for addition to an IV solution what volume would you draw up in the syringe? •20 mEq 3.) What volume would you need for a dosage of 20 mEq? •10 mL (20/40 x 20)

Solutions measured as Milliequivalents

Trade Name: Potassium Chloride 30 mEq (2 mEq/mL) 15 mL single dose vial 1.) What are the total dosages and volume of this vial? • 30 mEq 2.) What is the dosage in mEq per mL? •2 mEq/mL 3.) If you were asked to prepare 15 mEq for addition to an IV, what volume would you draw up? • 7.5 mL (15/2 x 1)

Solutions measured as Milliequivalents

Trade Name: Sodium Bicarbonate 8.4% 4.2 grams (50 mEq)/50 mL 50 mL 1.) What is the dosage strength expressed in mEq/mL? •50 mEq/mL 2.) What is the total volume of the vial, and how many mEq does the volume contain? •50 mL/ 50 mEq/mL 3.) What is the strength per mL expressed as g? •0.084 g/mL 4.) If you were asked to prepare 10 mL of an 8.4% sodium bicarbonate solution what volume would you draw up in a syringe? •10 mL

insulin syringes are calibrated in

units commonly 50 units/ 100 Units or 30 Units

Percent and Ratio Solution Labels

1.) How many mL are needed for a 10mg dosage? •0.5 mL (10/20 x 1 = 0.5) 2.) How many mL for a 20 mg dosage? •1mL (20/20 x 1) 3.) If you are asked to prepare 5mL of a 2% solution, how many mL would you draw up? •2mL (5/20x20) 4.) If you are asked to prepare 15 mg? •1.5 mL

What are you responsible for when reconstituting a drug?

1.) Label 2.) Date 3.) Time 4.) Initials

How do you properly mix insulin?

1.) Locate the correct R and NPH insulin and use an alcohol wipe to cleanse both vial tops 2.) Locate the correct insulin syringe 3.) Draw up the correct units of replacement air for the NPH and insert the needle tip into the NPH vial. Keep the needle tip above the insulin level to not inject air into the insulin 4.) Draw up the correct units of replacement air for the Regular insulin 5.) Pick up and gently rotate the NPH vial until the insulin is mixed. Insert the needle and draw up the insulin. 6.) Administer the insulin dosage at once

Solutions Measured in International Units

1.) What is the dosage strength of this medication? •1,200,000/ 2mL units 2.) If 600,000 units are ordered, how many mL would this require? •1 mL (600,000 units/ 1,200,000 units x 1)

Reading metric SI/Solution Labels

1.) What is the dosage strength of this solution? • 6mg per mL 2.) How many mL are required for a dosage of 3mg? •0.5 ml (3mg/6 x 1) 3.) How many mL for a 6mg dosage? • 1mL (6mg • 6mg) 4.) How many mL for a 9 mg dosage? • 1.5 mL (9mg • 6mg) 5.) How many mL for a 12 mg dosage? • 2 mL (12mg/ 6mg)

Percent and Ratio Solution Labels

1.) What is the percentage strength of this lidocaine solution? •1 % 2.) How many mL does this vial contain? • 50 mL 3.) If you are asked to prepare 20mL of a 1% lidocaine solution how many mL will you draw up in a syringe? •20 mL 4.) What is the metric dosage strength of this solution? • 10mg/mL 5.) You are asked to prepare 25 mg from this vial, what volume will you draw up? • 2.5mL (25/10x1)

Percent and Ratio Solution Labels

1.) What is the percentage strength of this solution? • 10% 2.) How many mL does this preparation contain? •10 mL 3.) What is the per mL dosage strength of this solution? •0.465 mEq/mL

Reading metric SI/Solution Labels

1.) What is the total volume of this vial? • 10 mL 2.) What is the dosage strength? • 40 mg/ 10 mL 3.) If 8 mg were ordered, how many mL would this be? •20mL (8/4 x10) 4.) If 6mg were ordered, how many mL would this be? •15 mL (6/4 x 10) 5.) How many mL would be needed to prepair a 20mg dosage? •5 mL (20/40 x 10)

Solutions Measured in International Units

1.) What is the total volume of this vial? •10 mL 2.) What is the dosage strength? •1,000 units 3.) If a volume of 1.5 mL is prepared, how many units will this be? • 1500 units 4.) How many mL will you need to prepare a dosage of 5500 units? • 5.5 mL (5500/1000 x 1) 5.) If 0.25 mL of this medication is prepaired what dosage will this be? • 250 mL (0.25x1000 x1)

Most IM doses are prepared using a ___________

3 mL syringe

Most subcutaneous doses are prepared using a ______

3mL or Tuberculin syringe