UNDERSTANDING THE INSULIN SYRINGE: A COMPREHENSIVE GUIDE FOR DIABETES MANAGEMENT | Practice Of Medicine (2024)

If you or someone you know has diabetes, you may have heard about insulin and how it helps to manage blood sugar levels.

WHAT IS INSULIN HORMONE?

But have you ever wondered how people actually take insulin? That’s where the insulin syringe comes in! In this guide, we’ll explore what an insulin syringe is, how it works, and how to use it safely.

WHAT IS NORMAL BLOOD GLUCOSE LEVEL?

Table of Contents

WHAT IS AN INSULIN SYRINGE?

An insulin syringe is a special type of needle and tube used to give insulin injections.

Insulin is a hormone that helps the body to use sugar for energy.

People with diabetes sometimes need insulin injections to keep their blood sugar levels in check.

The insulin syringe is designed to make it easy to measure and give the right amount of insulin.

PARTS OF AN INSULIN SYRINGE

UNDERSTANDING THE INSULIN SYRINGE: A COMPREHENSIVE GUIDE FOR DIABETES MANAGEMENT | Practice Of Medicine (1)

An insulin syringe has a few important parts:

  1. The Barrel: This is the main part of the syringe, like a tiny tube where the insulin goes.
  2. The Plunger: The plunger is like a stick inside the barrel. It helps push the insulin out when you give the injection.
  3. The Needle: The needle is a thin, sharp metal point at the end of the syringe. It’s what goes under the skin to deliver the insulin.

TYPES OF INSULIN SYRINGE AND THEIR USES

There are two main types of insulin syringes:

U-100 Insulin Syringe

This type is used with most common types of insulin. Each milliliter (mL) of this insulin has 100 tiny units.

The syringe is color-coded orange.

U-40 Insulin Syringe

This type is used with a less common type of insulin. Each mL of this insulin has 40 units.

The syringe is color-coded red.

Make sure to use the right syringe for the type of insulin you are prescribed!

UNDERSTANDING THE INSULIN SYRINGE: A COMPREHENSIVE GUIDE FOR DIABETES MANAGEMENT | Practice Of Medicine (2)UNDERSTANDING THE INSULIN SYRINGE: A COMPREHENSIVE GUIDE FOR DIABETES MANAGEMENT | Practice Of Medicine (3)

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SIZES OF INSULIN SYRINGE

Insulin syringes come in various sizes, and choosing the right size is crucial for accurate insulin dosing and ease of administration.

The size of an insulin syringe is determined by its volume capacity, usually measured in milliliters (mL).

Different syringe sizes are available to accommodate various insulin dosages, making it easier for individuals with diabetes to administer the correct amount of insulin.

Common insulin syringe sizes include:

0.3 mL Insulin Syringe

This is the smallest insulin syringe size, typically designed for people who require very small insulin doses.

It is commonly used with U-100 insulin, where 1 mL of insulin contains 100 units.

These syringes are marked with clear calibrations to allow precise measurement of tiny insulin doses.

0.5 mL Insulin Syringe

This size is slightly larger than the 0.3 mL syringe and is also used for smaller insulin doses.

Like the 0.3 mL syringe, it is commonly used with U-100 insulin.

1.0 mL Insulin Syringe

The 1.0 mL syringe is the most common insulin syringe size and is suitable for individuals who require larger insulin doses.

Like the other syringe sizes, it is calibrated for U-100 insulin, making it easy to measure doses accurately.

1.5 mL Insulin Syringe

This size is less common but may be available in certain regions or for specific insulin types.

It is also calibrated for U-100 insulin.

2.0 mL Insulin Syringe

Similar to the 1.5 mL syringe, the 2.0 mL syringe is less commonly used but may be available for certain insulin formulations.

Factors that influence the choice of syringe size include the individual’s insulin requirements, the concentration of the prescribed insulin (U-100 or U-40), and the ease of use based on individual preferences.

Some important considerations when choosing an insulin syringe size include:

Insulin Concentration

Ensure that the syringe is calibrated for the specific concentration of insulin prescribed by your physician (U-100 or U-40).

Using the wrong syringe size for the insulin concentration can lead to incorrect dosing.

Insulin Dosage

Choose a syringe size that can accommodate the required insulin dose without leaving too much empty space in the syringe.

It is generally recommended to select a syringe that can hold slightly more insulin than the prescribed dose to compensate for any air bubbles during filling.

Needle Length

The length of the needle on the syringe can also vary.

Shorter needles are often preferred for individuals who are lean or have less body fat, while longer needles may be more suitable for those with more body fat.

Ease of Handling

Some individuals may find it easier to handle larger syringes, while others may prefer smaller ones.

Comfort and ease of use are important factors to consider when selecting an insulin syringe size.

Comfortability and Adherence

The chosen syringe size should encourage comfortability with insulin administration and adherence to the prescribed insulin regimen.

NOTE:

Remember, using the correct insulin syringe size is essential for accurate dosing and proper diabetes management. Always consult with a healthcare professional for guidance on the appropriate syringe size and insulin administration techniques based on individual needs and medical requirements.

HOW TO USE AN INSULIN SYRINGE

Using an insulin syringe might sound a bit tricky at first, but with practice, it becomes easier. Here are the steps to use one:

Step 1: Wash Hands

Before you touch anything, wash your hands with soap and water. Clean hands help prevent infections.

Step 2: Get the Insulin Ready

  1. Check the insulin bottle to make sure it’s the right one your doctor prescribed.
  2. If the insulin looks cloudy, gently roll the bottle between your hands. But don’t shake it!
  3. Clean the top of the insulin bottle with an alcohol swab.

Step 3: Assemble the Syringe

  1. Take the syringe out of its package, being careful not to touch the needle or plunger.
  2. Put the needle on the end of the syringe.
  3. Take off the needle’s cap, being careful not to touch the needle.

Step 4: Draw the Insulin

UNDERSTANDING THE INSULIN SYRINGE: A COMPREHENSIVE GUIDE FOR DIABETES MANAGEMENT | Practice Of Medicine (4)

  1. Stick the needle into the top of the insulin bottle.
  2. Turn the bottle and syringe upside down.
  3. Slowly pull back the plunger to fill the syringe with the right amount of insulin.
  4. Check for air bubbles in the syringe. If you see any, tap the syringe gently to make the bubbles go away.

Step 5: Measure the Dose

Look at the numbers on the side of the syringe. Make sure you have the right amount of insulin in the syringe.

Step 6: Give the Injection

UNDERSTANDING THE INSULIN SYRINGE: A COMPREHENSIVE GUIDE FOR DIABETES MANAGEMENT | Practice Of Medicine (5)

  1. Choose where you want to give the injection – like your tummy, thigh, or upper arm.
  2. Clean the spot with an alcohol swab and let it dry.
  3. Pinch the skin a little to make a tiny fold.
  4. Put the needle into the skin quickly, at a 90-degree angle for most people, or a smaller angle for kids or people with less body fat.
  5. Push the plunger all the way down to give the insulin.
  6. Take the needle out and press on the spot with a cotton ball or tissue.

Step 7: Throw Away the Syringe

After using the syringe, take the needle off and throw it in a special sharp’s container. Never put used syringes or needles in the regular trash!

TIPS FOR OPTIMAL INSULIN SYRINGE USE

  1. Always follow your doctor’s instructions for taking insulin, including the dose and type of insulin.
  2. Change where you give the injections to keep your skin healthy.
  3. Don’t reuse syringes or needles – always use a new one for each injection.
  4. Keep your insulin and syringes away from the sun and extreme heat or cold.

CONCLUSION

The insulin syringe is a tiny but essential tool for people with diabetes.

By following the steps and tips in this guide, you can use the syringe safely and manage your diabetes like a pro!

Always talk to your doctor or nurse if you have any questions or need help.

LEARN HOW TO DISPOSE INSULIN SYRINGE IN RESPONSIBLE WAY.

DO YOU KNOW HOW TO CALCULATE INSULIN DOSAGE?

With practice, taking insulin becomes just another part of your day, helping you stay healthy and feeling great!

UNDERSTANDING THE INSULIN SYRINGE: A COMPREHENSIVE GUIDE FOR DIABETES MANAGEMENT | Practice Of Medicine (2024)

FAQs

How many times can an insulin syringe be used? ›

Some people with diabetes use their insulin syringes and lancets more than once to save money. But makers of syringes and lancets do not recommend using them more than once. Talk with your doctor before reusing these items.

How much is 2 units on an insulin syringe? ›

Each line on a 100-unit syringe marks 2 units of insulin. Each line on a 50-unit or 30-unit syringe marks 1 unit of insulin. Use a syringe large enough to hold the whole dose of insulin.

What is 50 units in an insulin syringe? ›

Insulin syringes
Syringe sizeNumber of units the syringe holds
1/4 mL or 0.25 mL25
1/3 mL or 0.33 mL30
1/2 mL or 0.50 mL50
1 mL100

What size insulin syringe to use? ›

0.3 mL syringes are for insulin doses under 30 units of insulin and are numbered at 1/2-unit or 1-unit intervals. 0.5 mL syringes are for 30 to 50 units of insulin and are numbered at 1-unit intervals. 1.0 mL are for doses more than 50 units of insulin and are numbered at 2 units per interval.

How much insulin should I take if my blood sugar is 250? ›

High Blood Sugar Correction
Blood SugarUnits
120 to 170 mg/dL1
170 to 220 mg/dL2
220 to 270 mg/dL3
270 to 300 mg/dL4
May 26, 2024

How long can insulin stay in a syringe? ›

If you prefill syringes: Store the prefilled syringes in the refrigerator with the needle pointing up to prevent insulin from blocking the needle opening. Syringes filled with one type of insulin (rather than mixed insulin) will keep for about a month.

How many units of insulin a day is normal? ›

For example, if you weigh 160 pounds, your total daily insulin requirement is 40 units. If you weigh 220 pounds, your total daily insulin requirement is 55 units. However, it is important to note that this is an estimate.

Do you need a prescription for insulin syringes? ›

Can I buy insulin needles over the counter? Insulin is available only by prescription and typically comes in small vials. Disposable medical syringes, with and without needles for injection, are available over the counter (without a prescription) at most pharmacies.

What is the difference between 40 unit and 100 unit insulin syringe? ›

Well the main difference is that the markings measurements are for different concentration of insulin. U40 insulin has 40 units of insulin in every ml and the U100 has 100 units. Therefore when converting from a U40 syringe to a U100 syringe you are required to multiply your U40 units by 2.5.

What happens if there is an air bubble in an insulin injection? ›

Air bubbles in the syringe will not harm you if they are injected, but they can reduce the amount of insulin in the syringe. To remove air bubbles, tap the syringe so the air bubbles rise to the top and push up on the plunger to remove the air bubbles. Recheck the dose and add more insulin to the syringe if necessary.

How do you count insulin syringe units? ›

Each small dash on the syringe is one unit, or 0.01 mL. Syringes will typically be labeled per 10 units, so the syringe reads 10, 20, 30, 40, 50, and so on. When you draw up your medication, you'll fill it to the appropriate measurement for your dosage.

How many units is a lot of insulin? ›

In a review of insulin overdoses, excess dosages were reported as being anywhere from 26 to 4,800 units . Some of these were administered accidentally, which helps explain why the number is so high. It's important to know the symptoms of hypoglycemia in case you ever inject too much insulin.

How do I know what size syringe to use? ›

As mentioned above, the size of the syringe is largely determined by the amount of medication prescribed. For instance, if only ml of a drug is required, the syringe must be able to hold approximately ml itself. Using a bigger or smaller syringe will lead to an inaccurate dosage.

What is the difference between insulin syringe 29g and 30g? ›

The 29g can be used if you have more subcutaneous tissue (higher levels of fat) and the 30g can be used by those who have lower body fat.

What layer of skin does insulin go in? ›

Insulin is injected through the skin into the fatty tissue known as the subcutaneous layer. It shouldn't go into muscle or directly into the blood, as this changes how quickly the insulin is absorbed and works. Absorption of insulin varies depending on where in the body it is injected.

What happens if you reuse an insulin syringe? ›

You are right that the reuse of insulin syringes and lancets is dangerous. It can even be deadly, as it can cause a number of skin infections.

Can you use the same syringe twice on the same patient? ›

Needles, cannulae and syringes are sterile, single-use items; they should not be reused for another patient nor to access a medication or solution that might be used for a subsequent patient.

Can a insulin injection be used twice? ›

Insulin pen needles are intended for single use only but it is known that a significant proportion of people with diabetes do re-use needles. Whilst this guide refers to insulin pen needles, the same principles will also apply to pen needles for injections of incretin mimetics such as Byetta and Victoza.

How to clean a syringe for reuse? ›

  1. o clean a syringe correctly, you must do all nine steps: ...
  2. A. Rinse with clean water. ...
  3. for 30 seconds. ap or shake syringe T.
  4. from syringe. Discard water.
  5. steps 1, 2, and 3 at least once or until water in syringe is clear (no blood).
  6. B. Disinfect with pure bleach. ...
  7. for 30 seconds. ap or shake syringe T.
  8. from syringe.

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