SQ injections - concepts to know Flashcards

1
Q

Connects to the needle

A

Tip

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2
Q

Outside part with markings for the dosage

A

Barrel

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3
Q

Used to withdraw medication and push it out through the needle

A

Plunger

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4
Q

Which parts of the syringe must remain sterile?

A

tip, inside of the barrel and the plunger

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5
Q

If 3mL are to be administered, what size syringe should be chosen?

A

the next size up - e.g. 5mL

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6
Q

Why should a syringe not be filled to capacity?

A

The plunger can easily fall out

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7
Q

Which syringe scale is most commonly used?

A

millilitre scale

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8
Q

The dosage of a 1mL syringe is marked how?

A

Tenths and hundredths

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9
Q

The dosage of a 3mL syringe is marked how?

A

marked in tenths

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10
Q

How much insulin does an insulin syringe hold?

A

100 units

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11
Q

the 1mL syringe is commonly used for what?

A

SQ or intradermal injections

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12
Q

the 3mL syringe is commonly used for what?

A

SQ or IM injections

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13
Q

What are the three parts of the syringe?

A

Tip, barrel, plunger

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14
Q

What are the three parts of the needle?

A

Hub, cannula or shaft, bevel

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15
Q

Slanted part at tip of the needle

A

Bevel

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16
Q

Attaches needle to the syringe

A

Hub

17
Q

Attached to hub, long thin stem of the needle with a bevel at one end

A

cannula or shaft

18
Q

Hollow core of the needle shaft

A

lumen

19
Q

What should the nurse assess for when determining needle length?

A

route of injection
site of injection
client size

20
Q

When determining the gauge, the nurse should asses for what?

A

Route of injection

Viscosity of the meds

21
Q

The larger the gauge, the _______ the diameter.

A

smaller

22
Q

25G vs. 30G. Which has the bigger diameter?

A

25G

23
Q

The more viscous the medication, the _____ the gauge.

A

smaller

24
Q

In general, the diameter for SQ injection is _______ than the diameter for an IM medication. Why?

A

Smaller

b/c the volume of medication is smaller for SQ and less viscous than IM

25
Q

What sites are used for SQ?

A

Back of arm, anterior aspect of thigh, abdomen

26
Q

What is the safe SQ volume?

A

up to 1mL

27
Q

What is the needle gauge for SQ?

A

25-30G

28
Q

What is the needle length for SQ?

A

3/8-5/8”

29
Q

What is the angle of injection for SQ?

A

90° or 45° for thin clients

30
Q

What is used to withdraw medication from an ampule?

A

Filter needle to prevent drawing up glass

31
Q

What is the preferred site for administering anticoagulants?

A

Abdomen, 5cm below umbillicus below the coastal margins and above the iliac crests

32
Q

Insulin is absorbed most rapidly where?

A

Abdomen

33
Q

How long do you wait after injection to remove the needle for SQ?

A

5 seconds

34
Q

How long can open insulin be used for?

A

28 days