-
What are small volume parentals used for?
- Injections
- Biologicals (vaccines, toxoids, anti-toxins)
-
What are large volume parentals used for?
- IV fluids for maintenance, replacement, replenishment of fluids, electrolytes, vitamins
- Irrigation fluid, to bathe body wounds or surgical openings
- Dialysis solutions: used for peritoneal dialysis or hemodialysis for removal of toxic substances from blood
- Blood replenishment products: whole blood red blood cells,serum albumin, plasma protein
-
What are the facts stated from the slides about IV parentals solutions?
- Optimum blood levels: accuracy and immediacy
- Can be adminstered to unconscious or uncooperative patients
- For emergiences; rapid action, no absorption
- Cant be removed once administered
- Absolute sterility requirments
- ONly aqueous solutions are used except for fat emulsions in partenal nutrition solutions
-
What are the main hazards with IVs?
- Thrombus: blood clot formed with a blood vessel, it is from low circulation or to an alteration of the blood or vessel wall
- Embolus: Circulating clot that can lodge in a blood veseel, can cause obstruction
-
WHat are te facts stated from the slide about IM parental solutions?
- Less rapid and longer duration than IV
- Aqueous and oleagenou solutions: suspensions variable absorption rate
- The sites of injection should be rotated if there is a series of injections
-
Where should IM parental injections be administered?
- Into the skelatal muscle
- Try to avoid blood vessels and nerves
- Slight aspiration before injection: to make sure the drug is not injected into a vein
-
Where should adults be administered a IM injections?
Upper outer quadrant of the gluteal maximus is prefered
-
Where should infants be administered a IM injection?
- Best are the upper deltoid muscle of the upper arm or the mid lateral muscles of the thigh
- The gluteal area is small without much muscle and is close the sciatic nerve so this area should be avoided
-
Where should subcutaneous injections be adminstered?
- Into the loose intstitial tissue, underneath the surface of the skin
- Outer surface of the upper arm, anterior surface of the thigh, lower portion of the abdomEN
-
What is the max volume administered by subcutaneous route
1.3 ml, anything larger would cause large pressure and pain/irritation
-
What are the facts stated about intradermal route of administration ?
- Administered into the dermis
- The usual site is the anterior surface of the forearm
- Very little volumes are applied (0.1)
- USed as a diagnosed, for TB, diptheria toxin, immuniztions
-
What are the facts on steam under pressure sterility?
- It is the method of choice for thermostable products
- the pressure allows for higher temperature that 100
- It is the temperature that kill the microbial not the high pressure
- The heat denatures the microbes proteins
- Standard load it 15 mins art 121oC
-
What is the steam under pressure sterility not suitable for?
Oil, oleagenous preparations, exposed powders
-
What is the dry heat method of sterility?
- OVEN
- Very high temperatures at long periods of time
- 160-170 for 2 hours
- Kill cells be dehydration followed by burning and oxidative processes
- Used for glassware and surgical tools
-
What is the dry heat method of sterility applicable for?
To all products not penetrated by moisture, glycerin, oils, petrolatum products and heat stable products
-
What are the facts about filtration sterility?
- Microorganism are removed by adsorption to a filter medium of by sieving mechanism
- USed for smalll volumes (ophthalmics)
- Good for heat sensitive products
-
What is the pore size filtration sterility to be steril?
0.2 mcm pore size
-
What are the advantages filtration sterility?
Speed, Cost, complete removal of microbials and particulate matter
-
What are the disadvantages of filtration sterility?
- Effectiveness of filtrate is determined by microbal load
- Adsorption of certain materials to the membrane
- Long time needed for large volumes
-
What are the facts about gas sterility of parentals?
- The gases used are extremely flammable and are mixed with inert gas (CO2)
- The gas interferes with the metabolism of the bacterial cells
- Longer exposure is needed 4 to 16 hours
- Useful for heat sensitive and moisture sensitive materials
-
What is the main use of gas sterility?
Sterilization of medical and surgical supplies and appliances
-
What are the facts on ionizing radiation sterilization?
Rays induce the mricoorganisms to form harmful products that induce destruction of cells and/or destruction of DNA
-
What are pyrogens?
- They are lipopolysaccharides from the outer cell wall of bacteria and endotoxins, fever producing
- Relative thermal stable and still remain after regular autoclaving, dry heat sterilization, and filter >0.2 mcm
-
How are pyrogens destroyed?
- High heat and oxidation (POtassium permanganate, peroxides, acid)
- 250 oC for 30 to 45 minutes
-
What dose it mean to be particulate free in parental solutions?
to be free of the mobile , undissolved substances unitentionally present in parentals solutions
-
What is the number of pariculate allowed for LVP?
- 50 particles/ml less that 10mcm
- 5 particles/ml greater than 25 mcm
-
What are the number of particles allowed for SVP
- 10,000particle/container less than 10mcm
- 1,000 particles/container greater than 25 mcm
-
What are the origins of particulate in parentals?
- The solution itselft and the chemicals comprising it
- The manufacturering process
- The devices used for administration
- The packaging components
- THe manipulations during preparation
-
Parentals regularly have added substance to maintain stability, what are they?
- Buffer to regulate the pH
- Prevent oxidative process; citric acid, EDTA, tartaric acid,
- Prevent microbial and fungal growth; Benzoyl alcohol, chlorobutanol, benzoates
-
What are the test for validation of sterility?
- To confirm the absence of microorganisms and spores
- Because some spores of microorganism are resistant to certain sterility processes
-
What are the test to validate pyrogen absence?
- Rabbit test: the change in the rectal temperature of 0.5 oC or the sum of 1.4 oC in 5 rabbits
- LAL test: Tests for coagulation of an enzyme-protein complex from red blood cells of the horseshoe crab in the presence of lipopolysaccharides. This test is more sensitive than the rabbit test
-
How is the detection of particulates measured?
- Electronic liquid borne particles counter with a light obscuration sensor
- Particulates bring the risk of thrombus and embulus formation
- The clarity test can be used, swirling the contents of the solution againsts a light and dark background under light
-
What are some specific characteristic for parentals?
- Buffers, stabilizers, and preservatives are restricted
- Coloring agents are prohibited
- Sterile, pyrogen free, particulate free
- Must be package in completly air tight containers
- Volume are slightly larger than what the package says becuase there is no way to get all the solution out
- Powders that are used for reconstituted must be lyophilized or spray dried
-
What are the facts about water for injection (WFI)?
- Same as purified water USP
- NOT REQUIRED TO BE STERILe
- Must be pyrogen free
- No antimicrobial agent
-
What is the main use for water for injection for parentals solutions?
For manufacturing parentals that will go through a final sterilization
-
What are the facts about sterile water for injection (SWFI)?
- STERILE
- Pyrogen free
- Package in single dose containers
- No antimicrobial agent
- Diluent for reconstituted of powders or in a parental admixture
-
What are the facts about Sodium Chloride Injection, or Normal Saline Injection?
- NS (0.9 %)
- Sterile
- Pyrogen free
- Isotonic
- No microbial agent
-
What are the facts about bacteriostatic water for injection
- Pyrogen free
- Sterile
- Contains Bacteriostatic agent (inhibits bacterial growth)
- Package in containers no greater than 30ml
- Bacteriostatic Sodium Chloride Injection, same but with USP NaCl
-
When are bacteriostatic water for injection used?
When small volumes are administered due to the toxicity of antimicrobial agents
-
What is Ringer's injection?
- A sterile solution of NaCl, KCl, and CaCl2 in concentration similar to body fluids
- Used as a vehicle or electrolyte replenisher
- Ringers Lactate injection, same with lactate
-
What are the facts about dextrose 5% (D5W) in water?
- Sterile
- Isotonic solution of dextrose
- Used to hydrate patients without the addition salts
-
What are the non-aqueous vehicle used for parentals solutions?
- Glycerin
- Propylene glycol
- Alcohol
- USed for drugs that have limited water solubility or are susceptiple to hydrolysis
- Should allow syringability, can be given in a syringe
- Vegetable Oil USP, safflower oil, cotton seed oil,
- Must remain clear when stored in refrigeration
- Must not contain mineral oil, paraffin
-
What is the main use for parentals containing non-aqueous vehicles?
IM injections
-
What are some added substances to parental solutions?
- N2 or CO2 to replace the atmospheric gas that can potentially make the solution unstable
- Are only added if necessary to increase stability or effectivness
- Co-solvent
- Buffers
- Preservatives
- Solubilizers
- Antioxidants
-
What are the concerns for containers for parental solution?
- Permeability
- Leaching of consituents
- Adsorption of drugs
- Transmission of light
- Alteration during storage
- Closures
- Clarity and absence of color
-
What are the facts about the types of glass containers for parental solution?
- Types I,II,III
- NP-type is not allowed
- They are heavy, bulky for storage, easy to break
- Leaching of alkali from soda-lime glass, types II, III
-
What are the facts about plastic containers?
- Low and medium density polymers of polyethylene (PE)
- Allow for larger variety of shapes and size
- More resistant for impact
- MOre prone to cause binding of drug molecules to polymer material
-
What type of plastic container can be autoclaved?
Polypropylene (PP)
-
What are some single dose containers?
- Ampuls
- Bottles
- Prefilled syringes
- Cannot be resealed
- May be packaged as small volume or large volume
-
What are some multiple dose containers?
- Bottles
- Bags
- Contain antimicrobial preservatives, becuase of multiple penetration
- Allow withdrawl of multiple doses
- Can be resealed
- Packaged only as small volume (max of 30ml to limit the number of penetrations and excess anitmicrobial agent)
-
What is important about labels on parentals?
There must allow for suficient area free for inspection of particulate matter
-
What are the storage requirement for pure agents?
Room temperature
-
What parentals required to be stored in the refrigerator?
- Biological products
- Vaccines
- Insulin
- Some antibiotics
- Cytoxic
- Biotechnology products
-
Can parentals be freezed?
Some can but check the literature
-
What are the main uses for small volume parentals?
Preparations for direct injection into vein, muscle, subcutaneous tissue
-
What are the main uses for large volume parentals?
- Solutions for intravenous infusion only, contain no antimicrobial agents, used for replenishment of body fluids and electrolytes,
- Single dose containers
-
What are Maintenance Therapy LVP used for?
- For patient that are entering or recovering from surgery
- Or unconcious
-
What are Replacement Therapy LVP used for?
- Patient with heavy fluid loss and/or eletrolyte
- Severe diarrhea, vomiting
-
What are Fluid Requirment LVP used for?
- Water is administered in a solution with dextrose or electrolytes
- Avoid hemolysis
-
What are the electrolyte requirments for potassium?
- Cardiac and skeletal muscle function
- Is used for hypokalemia during severe burns
- GI diseases
- Acute Alcoholism
- Poor Nutrition
-
What are the electrolyte requirments sodium?
- Principle extracellular cation
- Is used for Hyponatremia during excessive sweating diarrhea,
- Use of some diuretics
-
What are the electrolyte requirments for Chloride?
- Principle extracellular anion
- Necessary for muscle contraction
- To maintain acid-base balance
-
What are sterile pellets or implants?
- Sterile small solids implanted subcutaneously in thigh or abdomen has long lasting effect
- Hormones
|
|