Product-Specific Respiratory and Injection Equipment

Introduction

A medicine's ingredient name does not tell you how to use the device it comes in. Albuterol, for example, comes in more than one form, and each form has its own device and its own rules. An instruction that is correct for one albuterol inhaler can be wrong, or even damaging, for another. Insulin works the same way. One insulin may be allowed in a pump while another must never go in one.

So the working rule for this lesson is: the instructions belong to the exact product and device in front of you, not to the ingredient or the drug category. When a question comes up, you find the instructions written for that exact product.

What you will be able to do

• Describe what a nebulizer, an infusion set, a connection set and an auto injector each do, and recognize the features of an FDA-cleared sharps container.
• Apply the albuterol instructions written for a specific device: a nebulizer, an aerosol inhaler or a powder inhaler. Explain why an instruction for one device does not carry over to another.
• Recognize device restrictions for specific insulin products, such as pen-only, no syringe, no pump and no mixing.
• Choose the product-specific reference that answers a device question, and say when the question belongs with the pharmacist.

Before you start

You need everyday reading and simple division. Every new term is defined when it first appears.

If you want more background, these lessons help but are not required:

• Read a medicine identity before learning a name
• Forms, routes and special administration
• Diabetes and thyroid medicines

Brand names appear in this lesson because the source documents name them. Seeing a name here does not mean that product is currently sold.

Four pieces of equipment and what each does

Sharps: the category that connects three of them

FDA uses sharps to mean devices with points or edges that can puncture or cut skin. In plain terms, a sharp is anything that can stick or cut someone. Three of the four devices below are sharps. The nebulizer is not.

Nebulizer

A nebulizer is a machine that turns a liquid medicine into a mist the patient breathes in. Albuterol solution is inhaled through a jet nebulizer.

The parts connect in a chain:

1. The liquid goes into a reservoir, a small cup that holds it.
2. The reservoir connects to a mouthpiece or a face mask.
3. The nebulizer connects to a compressor, the machine that powers it.

There is no needle anywhere in this chain, so a nebulizer is not a sharp.

Infusion set

An infusion set is a tubing system with a needle, used to deliver drugs into the body. The key word is deliver: medicine travels one way, into the patient. Insulin pumps use infusion sets. FDA's insulin guidance describes the reservoir, tubing and catheters as parts of a pump's infusion set.

Connection set

A connection set (also called a connection needle) is a needle that connects to a tube used to move fluids in and out of the body. FDA notes it is generally used for patients on home hemodialysis.

The two-way movement is what separates it from an infusion set:

• Infusion set: answers "How does a drug get delivered into the body through tubing?"
• Connection set: answers "How do fluids move both into and out of the body through tubing?"

Both are tubing with a needle, so the direction of flow is the fact that tells them apart.

Auto injector

An auto injector is a syringe that comes already filled with liquid medicine and is designed for patients to inject themselves. FDA's examples include epinephrine pens and insulin pens. The two features to recognize are that it arrives prefilled and that it is meant for self-injection. An empty syringe that someone fills from a vial does not meet that description.

Worked example: name the device from its job

A description reads: "Tubing with a needle that sends medicine from a pump into the body."

• Is the tubing part of a breathing device? No. It has a needle, so it is a sharp, not a nebulizer.
• Does fluid go both in and out? No, the medicine flows one way into the body.
• Is it a prefilled syringe? No, it is a tubing system.

The answer is an infusion set.

Now change one fact: the tubing moves fluid out of the body and back in during home hemodialysis. Flow now goes both ways, so the answer becomes a connection set.

Check your understanding: equipment

Question 1

A patient's caregiver describes a device: "It arrived already full of medicine, and the patient presses it against their thigh to give themselves the dose." Which of the four devices fits, and which detail decides it?

Question 2

A coworker says, "Nebulizers go in the sharps container with the other respiratory equipment." What is wrong with this reasoning?

The FDA-cleared sharps container

FDA says used sharps should go into a sharps disposal container immediately after use. Each feature of an FDA-cleared container answers a specific danger:

• Puncture-resistant plastic: the walls are built to resist needles poking through, which lowers the risk of someone being stuck. "Resistant" means reduced risk, not a guarantee that nothing can ever get through.
• Leak-resistant sides and bottom: fluid from used devices stays inside.
• A tight-fitting, puncture-resistant lid: sharps cannot fall or be pushed out through the top.

FDA explains why this matters. Loose used sharps can injure people and spread infections such as hepatitis B, hepatitis C and HIV. People at risk include trash and sewage workers, janitors, housekeepers, household members and children. FDA says never to put loose sharps in household or public trash or recycling bins, and never to flush them.

If an FDA-cleared container is not available

FDA says a heavy-duty plastic household container, such as a laundry detergent container, can be used instead. The Fiasp instructions describe what such a household container needs to be:

• made of heavy-duty plastic
• closable with a tight-fitting, puncture-resistant lid that sharps cannot come out of
• upright and stable during use
• leak-resistant
• labeled to warn of hazardous waste inside

Disposing of the full container depends on where you are

What happens when the container is almost full is not one national answer. The Fiasp instructions say to follow your community guidelines and note that there may be state or local laws about getting rid of used needles and syringes. They also say:

• Do not recycle the used container.
• Do not put it in household trash unless community guidelines allow it.

FDA's description of a good container does not replace those local rules. The container's features come from FDA. The disposal route for a full container comes from the community, state or local rules where the patient lives.

Check your understanding: sharps containers

Question 3

A customer says, "My container is FDA-cleared, so I can toss it in the regular trash when it's full. Federal approval covers that, right?" What should the customer understand?

One ingredient, three albuterol devices

Albuterol comes in three forms, each with its own device:

• Solution (liquid): inhaled as a mist through a jet nebulizer.
• Aerosol: a pressurized spray inhaled from an inhaler. The examples here are HFA inhalers.
• Powder: inhaled from a dry-powder inhaler. ProAir RespiClick is the example here.

A formulation is the physical form a medicine is made in: liquid, pressurized spray or dry powder. All three share the ingredient albuterol, and all three are used for breathing problems. They are still different formulations in different devices.

That difference is why their handling rules differ, sometimes to the point of opposite answers. Neither a shared ingredient nor a shared use lets you swap devices or move instructions from one to another.

Before a patient uses an albuterol inhaler or nebulizer for the first time, MedlinePlus advises three things:

• read the written instructions that come with the device
• ask a doctor, pharmacist or respiratory therapist to demonstrate it
• practice while that person watches

The nebulizer routine

Here is the albuterol nebulizer process as MedlinePlus describes it, with the reason for each step:

1. Take out one vial and leave the rest in the foil pouch. Unused vials stay protected until they are needed.
2. Look at the liquid. It should be clear and colorless. A cloudy or discolored vial is not used.
3. Twist off the top and squeeze all the liquid into the reservoir. The full dose goes into the cup that feeds the mist.
4. Connect the reservoir to the mouthpiece or face mask, then connect the nebulizer to the compressor. This completes the chain from machine to patient.
5. Sit upright, turn on the compressor, and breathe calmly and deeply for about 5 to 15 minutes, until mist stops forming.

Adding another medicine. If the patient also uses the nebulizer for other medicines, MedlinePlus says to ask a doctor or pharmacist whether those can go in the reservoir with albuterol. The source does not say yes or no. The decision belongs to them.

Cleaning. Clean the nebulizer regularly following the manufacturer's directions.

The aerosol inhaler: one labeled product as the example

The details below come from one current DailyMed label for an albuterol sulfate aerosol made for Cipla. They describe that product. Another aerosol product's label governs that other product.

The counter

• The counter is attached to the plastic actuator, the mouthpiece housing that sprays the medicine from the metal canister.
• It starts at 200 and counts down.
• When it reads 20, the patient should refill or ask about a new prescription.
• When it reads 0, the inhaler is thrown away. It may still spray, but the correct amount of medicine in each spray can no longer be assured.
• Do not try to change the numbers or remove the counter. It cannot be reset.

Priming

Priming means releasing test sprays so the next spray holds the right amount of medicine. For this product, prime:

• before first use
• when it has not been used in more than 14 days
• when it has been dropped

To prime, shake well and release 4 sprays into the air away from the face, shaking before each spray.

MedlinePlus, speaking generally, says an aerosol inhaler may need priming after a drop and to check the manufacturer's information. This product's label answers that check: it says you must.

Actuator and canister must match

The actuator is not used with any other product's canister, and this canister is not used with any other actuator.

Cleaning

This label directs washing the plastic actuator with warm water and letting it air-dry completely, at least once a week. This prevents blockage of the spray opening.

Never float the canister

MedlinePlus warns not to float the canister in water to check whether medicine is left. Checking contents is the counter's job.

If the cap was off

If the protective dust cap was not in place, check the mouthpiece for dirt or other objects. Make sure the canister is fully and firmly inserted.

The powder inhaler (RespiClick)

The powder inhaler works differently, so its rules differ:

• No spacer. Do not use it with a spacer or volume-holding chamber.
• Opening the cap loads a dose. Opening the protective cap until it clicks makes a dose ready and lowers the counter. Do not open it unless the patient is ready to inhale, or the dose is wasted.
• Do not breathe out into it.
• Keep it clean and dry at all times. Clean it with a clean, dry tissue or cloth. Never wash it or put any part of it in water. The manufacturer says to replace the inhaler if it was washed or placed in water.

Changed-case contrast: the same question, opposite answers

A patient asks, "Should I rinse my albuterol inhaler with water?"

• The aerosol product above: yes. Its label directs a weekly warm-water wash of the actuator, followed by complete air-drying.
• RespiClick: never. No part goes in water, and an inhaler that got wet should be replaced.

The ingredient is the same, but the answers are opposite. Only one fact changed: which device the patient has. That is the whole lesson in one case.

The same logic applies to priming. The aerosol label's four-spray priming routine is an aerosol instruction. The RespiClick steps described above load a dose by opening the cap, so for a RespiClick, check its own instructions rather than borrowing the aerosol routine.

Check your understanding: albuterol devices

Question 4

A patient using the Cipla aerosol inhaler described above says, "My counter says 0, but it still sprays when I press it, so I'll keep using it." What does this label say, and why?

Question 5

A patient picks up a new RespiClick. They already own a spacer that works well with an aerosol inhaler, and they plan to use it with the RespiClick too. What do you recognize?

Question 6

A patient dropped the Cipla aerosol inhaler. What does this label require before the next use? Then change one fact: the patient instead dropped a RespiClick. Where do you look?

Insulin devices: the exact product's label decides

Terms you need

• Prefilled pen: a pen that comes already filled with insulin. FDA lists insulin pens as a kind of auto injector.
• Cartridge: a container of insulin that goes into a compatible device.
• Insulin pump: a device that delivers insulin under the skin through an infusion set. Insulin sits in the pump's reservoir before delivery.
• U-100: 100 units of insulin per mL, as the Fiasp label shows. A label reading U-200 is a different strength.
• Prescribing information and Instructions for Use (IFU): the official labeling for one specific product. A pump also has its own instructions for use, sometimes called its user manual.

Four kinds of device restriction

Insulin device restrictions tend to fall into four groups. Each one below is tied to a specific named product.

1. Which device form is allowed

• FDA says Awiqli (insulin icodec) is only available as a prefilled pen. It must not be drawn from the pen into a syringe.
• The Fiasp FlexTouch pen instructions also say not to use a syringe to remove Fiasp from the pen.
• Compare the Fiasp 10 mL vial. Its instructions describe drawing a dose with a U-100 insulin syringe. The same product allows a syringe with the vial but forbids one with the pen. The device decides.

2. Whether pump use is allowed

• FDA says insulin icodec must not be used in an insulin pump.
• Humalog U-200 and Lyumjev U-200 must not be used in insulin pumps.
• Merilog (insulin aspart-szjj) is not currently labeled for pump use.
• The Fiasp label tells users to check the pump's user manual to see whether Fiasp can be used with that pump. Fiasp PumpCart cartridges are only for compatible pumps and are not used in an insulin pen.

3. Mixing

• Insulin icodec must not be mixed with other insulins.
• Fiasp must not be mixed with any other insulin, including in a pump.

4. How long insulin may stay in use

• FDA's emergency guidance says insulin in a pump's infusion set should be thrown away after 48 hours unless the pump device's instructions are different. It then gives product examples that differ, and it says to always follow the specific product's prescribing information and the pump's instructions.
• The Fiasp label says to change Fiasp in the pump reservoir at least every 6 days, or per the pump user manual, whichever is shorter.
• It says to replace a Fiasp PumpCart cartridge at least every 4 days, or per the pump user manual, whichever is shorter.
• Pump insulin exposed to temperatures above 98.6°F is thrown away.

Two cautions apply to all four groups.

A shared name is not a shared rule. Humalog U-100 appears in FDA's list of products with pump reservoir times, while Humalog U-200 must not be used in a pump. Fiasp and Merilog both have "aspart" in their names, yet only Fiasp's label describes pump use. Read the exact product and strength every time.

A summary for a whole class is not the rule for one product. FDA's emergency guidance describes rapid-acting insulins as injected no more than 15 minutes before a meal. The Fiasp label says to inject at the start of a meal or within 20 minutes after starting it. FDA's emergency page itself points back to the specific product labeling. When you need the routine rule for one product, use that product's label.

Choosing the right reference

Match the question to the document that answers it:

• "Can this insulin go in a pump, be mixed, or be drawn into a syringe?" Check the insulin's own prescribing information or Instructions for Use.
• "Is this insulin compatible with this particular pump, and how often is the reservoir changed?" Check both the insulin's labeling and the pump's instructions. Where both give a limit, the Fiasp label says to follow whichever is shorter.
• "The labeling doesn't settle it." FDA's page lists manufacturer customer service numbers and notes they can change. It says to verify current contact information on the package insert or the manufacturer's official website.

Your part: recognize, then route

Your task in these cases is to notice when a request conflicts with the product's labeling and to bring it to the pharmacist, ideally with the right reference already identified.

Choosing a different product, adjusting a dose or advising a patient on a new regimen is a clinical decision. That belongs to the pharmacist and the prescriber.

Worked example: a pen-only restriction

A patient picking up Awiqli asks for a box of syringes. They plan to draw doses out of the pen.

1. Identify the exact product: Awiqli (insulin icodec), a prefilled pen.
2. Find its restriction: FDA says insulin icodec must not be drawn from the pen into a syringe.
3. Act: The request conflicts with the labeling, so bring it to the pharmacist.

A tempting wrong move is to reason, "Other insulins come in vials used with syringes, so this is fine." That moves a rule from one product to another.

Changed case. The patient instead has a Fiasp 10 mL vial and asks for U-100 insulin syringes. The Fiasp vial instructions describe using a U-100 insulin syringe. Changing only the product, from a pen-only insulin to a vial, changes the answer.

Worked example: arithmetic versus an in-use limit

All numbers here are fictional teaching assumptions, not patient instructions.

A Fiasp PumpCart cartridge holds 1.6 mL of U-100 insulin. That works out to 1.6 × 100 = 160 units. Assume a fictional pump uses 25 units per day, and its user manual gives no limit shorter than Fiasp's.

• What the arithmetic says: 160 ÷ 25 = 6.4 days of insulin.
• What the label says: replace the PumpCart at least every 4 days, or per the pump manual, whichever is shorter.
• The answer: replace it within 4 days, even though insulin will be left over. The label lists reasons such as avoiding insulin breakdown, infusion set blockage and loss of the preservative.

Changed case. Assume the fictional pump manual says 3 days. Now the shorter limit is 3 days.

A correct calculation tells you how long the supply could last. It does not tell you how long the insulin may stay in use, and it does not show that the product and pump are a match.

Check your understanding: insulin devices

Question 7

A patient says they will start putting their Humalog U-200 in their insulin pump, "since Humalog works in pumps." What do you recognize, and what reference supports it?

Question 8

A coworker reads FDA's emergency statement that pump insulin should be thrown away after 48 hours. They conclude that 48 hours is the routine rule for every insulin in every pump. What is missing?

Independent practice

Question 9

A patient asks whether they can put Merilog in their insulin pump. Name what you recognize and the references that would settle the question.

Question 10

A patient fills a pump reservoir with Fiasp from a vial. Fictional assumptions: the reservoir holds 180 units, the patient uses 20 units per day, and the pump manual gives no shorter limit. How many days would the insulin last, and when must the reservoir insulin be changed?

Question 11

During nebulizer setup, a patient finds that one albuterol vial looks cloudy. They also want to add a second nebulized medicine to the reservoir. What applies to each issue?

Question 12

A household owns two albuterol inhalers: the Cipla aerosol described in this lesson and a RespiClick. Someone plans to wash both under warm water this weekend and to check whether the aerosol is empty by floating its canister. Correct each part of the plan.

Question 13

A patient's pump supplies are on the counter. Sort each item by function:

• (a) the tubing and needle that carry insulin from the pump into the body
• (b) the prefilled pen the patient keeps as backup
• (c) a container with puncture-resistant plastic walls, leak-resistant sides and bottom, and a tight puncture-resistant lid

Summary

• The exact product and device decide the instructions. The ingredient and the drug category do not. Same ingredient does not mean same formulation, and a shared use does not let you swap devices.
• Equipment functions:
• A nebulizer turns liquid into breathable mist. Reservoir → mouthpiece or mask, and nebulizer → compressor.
• An infusion set is tubing with a needle that delivers drug into the body.
• A connection set moves fluids in and out, generally for home hemodialysis.
• An auto injector is prefilled and designed for self-injection.
• FDA-cleared sharps containers have puncture-resistant plastic, leak-resistant sides and bottom, and a tight puncture-resistant lid. Disposal of a full container follows community guidelines and any state or local laws.
• Albuterol devices have different rules:
• The labeled Cipla aerosol: counter cannot be reset or removed; discard at 0; prime before first use, after more than 14 days unused, or after a drop; wash the actuator weekly; never float the canister.
• RespiClick: no spacer; opening the cap loads a dose; never put it in water.
• Insulin restrictions are product-specific: pen-only and no syringe (Awiqli); no pump (Awiqli, Humalog U-200, Lyumjev U-200; Merilog not labeled); no mixing (Awiqli, Fiasp); in-use limits set by the product label and pump manual, whichever is shorter (Fiasp).
• Class summaries in FDA emergency guidance point back to the product label. Correct arithmetic does not override an in-use limit.
• Recognize the conflict, identify the right reference, and bring clinical decisions to the pharmacist.

To practice, take any device question and answer three things in order: What exact product is this? What does its own labeling say? Who decides if the labeling doesn't settle it?