Chapter 014

1Copyright © 2012, 2007 Mosby, Inc., an affiliate of Elsevier Inc. All rights reserved.

Chapter 14 & 15

Parenteral and Units Dosages


Parenteral Dosages

FIGURE 14-1 Intramuscular, subcutaneous, and intradermal injections, with comparison of the angles of insertion. (From Potter PA, Perry AG: Fundamentals of nursing, ed 7,St Louis, 2009, Mosby.)


Parenteral Dosages (cont’d)

May be diluted and administered by themselves May be administered in conjunction with

existing IV fluids May be administered in addition to IV fluids


Parenteral Dosages (cont’d)

Packaging of parenteral medications:• Ampules• Vials• Mix-O-Vials• Syringes


Syringes


Syringes

FIGURE 14-8 Parts of a syringe. (From Potter P, Perry A: Fundamentals of nursing, ed 7, St Louis, 2009, Mosby.)


Hypodermic Syringes

FIGURE 14-9 Calibrations on a 3-mL syringe. (From Clayton BD, Stock YN, Cooper S: Basic pharmacology for nurses, ed 15, St Louis, 2010.)


Tuberculin Syringes

FIGURE 14-10 BD tuberculin syringes. (From Becton, Dickinson and Company, Franklin Lakes, NJ.)

0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00 mL

4 8 12 16


Needleless System

FIGURE 14-14 A, Needleless infusion system. B, Connection into an injection port. (From Elkin MK, Perry AG, Potter PA: Nursing interventions and clinical skills, ed 4, St Louis, 2007, Mosby.)

A

B


Example:

A physician orders atropine gr 0.01 IM stat. Atropine 0.4 mg/mL is available. Convert the physician’s order to milligrams.


Example:

The physician orders heparin 5000 units subcutaneous stat. Heparin 10,000 units/mL is available. How many milliliters of heparin will be administered?


Example:

The physician orders morphine 30 mg IM q4 h prn for pain. Morphine gr 1/0.5 mL is available. How many milliliters will the nurse administer?


Example:

The order states D5W 500 mL plus KCl 20 mEq at 42 mL/h IV. KCl is supplied in a 20-mL ampule containing 40 mEq. How many milliliters of KCl will be added to the 500 mL of D5W?


Insulin and Units

Brenda Holmes MSN/Ed RN


Insulin and Units

Medications: Insulin (see handout on a few types) Penicillin Epogen Heparin


Each line represent 1 unit



Example:Physician orders Humulin L Lente U-100 insulin 46 units plus regular Humulin R U-100 20 units subcutaneous every morning. You have 100 units/mL of Humulin L Lente insulin and 100 units/mL of regular Humulin R insulin. A U-100 insulin syringe is available. Draw vertical lines through the syringe to indicate the correct doses.


Asking: Units

Ordered:Humulin Lente 46 unitsHumulin R 20 units

Available: 100 units/mL


Lente 46 units

Regular 20 units




Education

Chapter 014