The BIG Picture of Sterile Compounding in the Hospital Setting

making IV/IM/SQ/epidural/inhalation products without contaminating them.

sterile compounding

verify orders, choose the right diluent, calculate doses/rates, check compatibility/stability, supervise aseptic technique, label with correct BUD, and run the quality program (cleaning logs, fingertip/media fills, airflow certs, environmental monitoring).

hospital pharmacists

A drug you prepare for parenteral or other sterile routes that is devoid of microbial contamination. It's made by preparing, mixing, assembling, packaging, or labeling ingredients—often starting from manufacturer-supplied sterile components (sometimes nonsterile that you sterilize, but that's advanced/rare in hospital).

compounded sterile preparation

must protect the patient from microbes and endotoxins/pyrogens.

sterile

anything that bypasses the GI tract (IV, IM, SQ, epidural, inhalation, etc.).

parenteral

your ISO 5 work zone (laminar airflow workbench [LAFW], biological safety cabinet, or compounding isolator).

PEC (primary engineering control)

the rooms around it—buffer room/cleanroom and ante room.

SEC (secondary engineering control)

sterile, sized appropriately.

syringe and needle

sterile drug (e.g., diltiazem) or a powder for reconstitution with sterile diluent.

additive vial

sterile IV fluid (0.9% NaCl, D5W, etc.).

base solution

alcohol pads (70% IPA), swabs, ports, labels, tamper seals—clean or sterile as appropriate.

ancillaries

small volume over minutes directly into the vein.

IV push

usually 25-250 mL given over 15-60 min, piggybacked into a primary line.

IV intermittent (IVPB/secondary)

steady rate for hours-days (e.g., heparin, vasopressors).

IV continuous infusion

depot/slow absorption; still must be sterile.

intramuscular and subcutaneous

highest stakes—absolutely no preservatives; extremely low endotoxin limits.

epidural/intrathecal

manufactured sterile or aseptically prepared unit doses; still under sterile handling in the hospital pharmacy when manipulated.

inhalation

which route is most dangerous if contaminated?

intrathecal (CNS infections/endotoxin sensitivity)

nonsterile compounding. if you slip up, patient might get an off-strength or spoiled product—not ideal, but less catastrophic.

oral suspensions

(non-sterility, wrong diluent/osmolarity, particulate, endotoxin) can cause sepsis, emboli, meningitis, or death. that's why aseptic technique, engineering controls, and environmental monitoring are non-negotiable.

CSP errors

select all that apply:

what is the garbing order?

1. shoe covers

2. head/hair cover

3. face mask/eye protection

4. hand/forearm wash

5. gown

6. enter buffer/PEC area

7. sterile gloves

8. sanitize gloves

9. re-sanitize gloves after touching

work 6 inches inside the __________________; don't block first air (the clean laminar stream that flows straight from the HEPA to the critical site).

hood

disinfect ________________: vigorous 70% IPA scrub, let dry—wet alcohol can drag microbes.

vial stoppers/port

top-to-bottom, back-to-front, clean-to-dirty

surface cleaning

(positive pressure for non-hazardous) with a laminar flow bench inside = your ISO 5 PEC sitting within ISO 7 buffer.

buffer/cleanroom

for garbing/hand hygiene and staging supplies.

ante room

keeps outside "dirty" air from sneaking in.

positive pressure

dirty hall → ante room (garb & wash) → buffer room → ____________.

PEC

select all that apply:

what is the pharmacist's role in a hospital sterile program?

1. order verification

2. calculations

3. compatibility & stability

4. aseptic oversight

5. assign BUD per USP

6. final check & labeling

7. quality program

limited by sterility and chemical stability (use the shorter).

beyond use date (BUD)

shorter BUDs, usually made in ISO 5 in segregated compounding area.

category 1

made in ISO 5 within ISO 7/8 SECs and can have longer BUDs if all conditions are met and testing supports it.

category 2

select all that apply:

what are three things you must keep in first air at all times?

1. vial stopper

2. needle bevel/hub

3. syringe tip/port