The document discusses different types of syringes. It describes the main parts of a syringe including the barrel, plunger, and tip. The barrel holds the medication, the plunger is used to draw in and inject medication, and the tip connects to the needle. It provides details on common types of syringes like hypodermic, tuberculin, insulin, and prefilled syringes. Safety syringes that prevent needlestick injuries are also discussed. The document concludes with a short quiz about syringe parts and types.

1. Injections
(Syringes)
By,
Ms. Ekta S Patel.

2. Syringes
o Syringes are made of plastic or glass, designed for one-
time use, and are packaged either separately or together
with needles of appropriate sizes.

3. A syringe consists of a barrel, plunger, and tip.

4. o Barrel: a hollow cylinder that holds the medication. It has
calibrations (markings) on the outer surface.

5. o Plunger: fits in the barrel and is
moved back and forth. Pulling
back on the plunger draws
medication or air into the syringe.
Pushing in the plunger forces air
or medication out of the syringe.

6. o Tip: the end of the syringe that holds the needle.

7. Old Practices

12. Types of syringe:
1. Hypodermic syringes:
o Hypodermic syringes are calibrated (marked) in cubic
centimetres (cc), milli-liters (mL), or units.
o Practitioners often refer to syringes by the volume of cubic
centimetres they contain, for example, a 3 cc syringe.

13. o Although many syringes are still labelled in cubic
centimetres, manufacturers are now phasing in syringes
labelled in millilitres.

14. o The smaller capacity
syringes (1, 2, 2 and 3
mL) are used most often
for subcutaneous or
intramuscular injections of
medication.

15. o The larger sizes (5, 6, 10, and 12 mL) are commonly used
to draw blood or prepare medications for intravenous
administration.

16. o Syringes 20 mL and larger are used to inject large
volumes of sterile solutions.

24. o 2. tuberculin syringe:
o The 1 mL syringe, also called a tuberculin syringe,
calibrated in hundredths of a millilitre.

25. o Because there are 100 lines on the syringe, each line
represents 0.01 mL.
o This syringe is used for intradermal injection of very small
amounts of substances in tests for tuberculosis and
allergies, as well as for intramuscular injection of small
quantities of medication.
o The tuberculin syringe is the preferred syringe for use in
measuring medications less than 1 mL

26. o 3. Insulin syringes:
o It is used for the subcutaneous injection of insulin and are
calibrated in Units rather than millilitres.
o The most commonly prepared concentration of insulin is
100 units per milliliter
o 100units = 1ml

28. o 4. A prefilled syringe:
o A prefilled, single-dose syringe contains the usual dose of
a medication.
o Some prefilled glass cartridges are available for use with
a special plunger called a Tubex or Carpuject syringe

29. o If a medication order is for the
exact amount of drug in the
prefilled syringe, the possibility
of measurement error by the
person administering the drug
is decreased

31. o 5. Safety Syringes:
o In order to prevent the transmission of blood borne
infections from contaminated needles, many syringes are
now manufactured with various types of safety devices.

32. o For example, a syringe may contain a protective sheath
that can be used to protect the needle’s sterility.
o This sheath is then pulled forward and locked into place to
provide a permanent needle shield for disposal following
injection.
o Others may have a needle that automatically retracts into
the barrel after injection.

38. Irrigation syringe

41. CCES:
1. Which part of syringe is connect with needle?
A. Hub
B. Tip
C. Plunger
D. Piston

42. 2. 100 unit of insulin = -------------ml?
A. 5ml
B. 2.5ml
C. 1ml
D. 10ml

43. o 3. which syringe is used for tubing irrigation?
A. Luer slip tip
B. Luer lock
C. Eccentric tip
D. Catheter tip

44. 4. a hollow cylinder of syringe is known as?
A. Hub
B. Tip
C. Barrel
D. Piston

45. 5. How much ML tuberculin syringe contains?
A. 1ml
B. 2ml
C. 3ml
D. 4ml

46. Answers
B
C
D
C
A