Quick facts
- A whole blood hemoglobin assay is a Class II entry in the United States at 21 CFR 864.7500, and an automated hemoglobin system is a separate Class II entry at 21 CFR 864.5620.
- Canada classifies a hemoglobin assay as an in vitro diagnostic device. Used for diagnosis it is Class II under Rule 4 of the Medical Devices Regulations.
- A hemoglobin device intended for use outside a laboratory, at the point of care, is a near patient device and moves to Class III under Rule 6 — a genuine class difference between the two countries.
- The class therefore follows where the test is run, not the analyte. The same chemistry is Class II in the United States and Class III in Canada once it leaves the laboratory.
- The definition of a near patient device is written in the Regulations: an in vitro diagnostic device intended for use outside a laboratory, for testing at home or at the point of care.
- The regulation text quoted here is current to 2026-09-21 and was last amended on 2026-06-17.
Hemoglobin testing measures how much oxygen-carrying protein is in a patient's whole blood, most often to detect anemia. It is done two ways: in a laboratory analyser, or at the bedside on a small meter that reads a drop of capillary blood. The two countries agree that the assay is a regulated device, but they disagree on the class once the test leaves the laboratory bench.
What is a whole blood hemoglobin assay?
The United States describes the product in its own words. Under 21 CFR 864.7500, a whole blood hemoglobin assay is a device consisting or reagents, calibrators, controls, or photometric or spectrophotometric instrumentation used to measure the hemoglobin content of whole blood for the detection of anemia. That generic category does not include automated hemoglobin systems, which are filed separately at 21 CFR 864.5620.
Two things in that sentence matter. The device includes the reagents and the instrument together. And the intended use is fixed: measuring whole blood hemoglobin for the detection of anemia. A meter, a cuvette and a reagent pack that are sold to do that job are one regulated device, even when the parts are bought separately.
How do Canada and the United States classify a hemoglobin test?
The test is Class II in the United States. In Canada the class depends on where the test is run.
| Item | Canada | United States |
|---|---|---|
| Hemoglobin assay run in a laboratory | Class II by Rule 4 | Class II, 21 CFR 864.7500 |
| Hemoglobin meter used outside a laboratory | Class III by Rule 6 | Class II, 21 CFR 864.5620 |
| Basis named in the rulebook | Whether the device is a near patient device | The named entry and its controls |
| What decides the class | Where the test is run | Which entry the product is filed under |
| Assay intended for cancer screening or staging | Class III by Rule 4 | Depends on the entry |
| Result of the difference | A device licence and a quality-system certificate either way | A Class II entry with special controls |
In the United States both the assay and the automated system are Class II entries with special controls. In Canada the hemoglobin assay is an in vitro diagnostic device, and the classification rules in Part 2 of Schedule 1 apply. Rule 4 puts an in vitro diagnostic device used in diagnosis or patient management in Class II unless it falls into a listed category, such as screening for cancer. Rule 6 then adds a separate rule for devices used away from the laboratory: a near patient in vitro diagnostic device is classified as Class III.
That is the difference in one line. A laboratory hemoglobin analyser is Class II in both countries. The same chemistry, packaged as a meter for use at the bedside, is Class III in Canada and Class II in the United States.
Why does the location of the test decide the class in Canada?
Because the Regulations define a near patient device by where it is used, and then lift it to Class III.
The interpretation section defines a near patient in vitro diagnostic device as an in vitro diagnostic device that is intended for use outside a laboratory, for testing at home or at the point of care, such as a pharmacy, a health care professional's office or the bedside. Rule 6 then states, without further qualification, that a near patient in vitro diagnostic device is classified as Class III. Rule 9 sets out a short table of exceptions where a near patient device stays at Class II or Class I — pregnancy, fertility and cholesterol testing, and microbiological media — but hemoglobin is not on that list.
The design rule is easy to state: read the analyte, then read where the device is used, then read the exception table. A hemoglobin meter used at the point of care carries Class III, while the same assay inside the laboratory carries Class II.
Which licence and records differ between the two countries?
For a supplier the class is not a label; it decides which paperwork has to exist before the test can be sold.
In the United States a Class II device reaches the market through premarket notification under section 510(k) unless the entry is specifically exempt. In Canada a Class II or higher in vitro diagnostic device needs a medical device licence before sale under section 32 of the Regulations, and a licence application is supported by a quality-system certificate against ISO 13485, together with the labelling and evidence the Regulations set out. A laboratory assay therefore needs a Class II licence, while the same chemistry packaged for point-of-care use needs a Class III licence and the supporting evidence that class attracts. A supplier that treats a bedside hemoglobin meter as the laboratory assay is holding a Class III device with a Class II file.
What do the two rulebooks actually say?
The two texts are short, and the difference between them is the whole point of this article.
| Rule or entry | Verbatim wording | Effect on a hemoglobin test |
|---|---|---|
| Rule 4, Canada | IVDD … intended to be used in diagnosis or patient management is classified as Class II | Class II for a laboratory assay |
| Rule 6, Canada | A near patient IVDD is classified as Class III | Class III for a point-of-care meter |
| Definition, Canada | near patient IVDD … intended for use outside a laboratory, for testing at home or at the point of care | A bedside meter qualifies |
| Rule 9, Canada | an IVDD set out in the table … is classified as the class set out in column 2 | Hemoglobin is not in the table |
| 21 CFR 864.7500, US | Whole blood hemoglobin assays | Named Class II entry |
Read together, the five lines explain why a supplier cannot move the class by relabelling. A meter described as a laboratory instrument while it is used at the bedside is described against the text, not against the product.
Which consumables does a point-of-care testing bench restock?
A bench that runs capillary blood testing runs on the same supplies as any other collection point. The double-tipped cotton swabs clear the site before a lancet is used, and the graduated 90 mL specimen cups carry any sample that has to go on to the laboratory. Where specimens move off site, the 95 kPa certified specimen transport bags hold the primary receptacle, and a clinic that also monitors its own steriliser pairs the sterilization monitoring collection with the 24-hour monitoring five-pack trial. Clinics and multi-site groups ordering at case level use the wholesale ordering page, and the B2B wholesale collection lists the lines held for institutional buyers. Reselling? become a distributor.
Sources
- 21 CFR 864.7500, Whole blood hemoglobin assays
- 21 CFR 864.5620, Automated hemoglobin system
- 21 CFR 864.6400, Hematocrit measuring device
- 21 CFR 864.8165, Calibrator for hemoglobin or hematocrit measurement
- Medical Devices Regulations, SOR/98-282, full text
- openFDA device classification API
- ISO 15189:2022, medical laboratories, requirements for quality and competence
- ISO 13485:2016, medical devices quality management
- ISO 14971:2019, risk management for medical devices
- CLSI, clinical and laboratory standards
- Public Health Ontario, laboratory services test index
- CCOHS, OSH answers
- Government of Canada, medical devices guidance
- Standards Council of Canada
- Canadian Dental Association
- Royal College of Dental Surgeons of Ontario
- College of Optometrists of Ontario, standards of practice
- Opto, eye health library
- American Academy of Ophthalmology, eye health
- 21 CFR 864.6550, Occult blood test
A meter that is checked against a control every day it is used is a meter whose drift is caught before it reaches a chart. The printable point-of-care quality control log is a blank sheet with columns for the device, the control level, the result and the pass or fail, so a shift shows up on the day. The quality control log generator on the same page sizes the sheet to the number of devices and control levels a site runs. No account and no sign-up are needed to open either one.
Every testing site is set up differently. Ask a compliance specialist and you will get a written answer specific to your equipment and province, with the regulation or standard it is based on cited.
Related reading
- Blood Culture Bottles in Canada vs the US: Which Rules Apply?
- Capillary Tubes in Canada vs the US: Which Size and Standard?
- Microcentrifuge Tubes in Canada vs the US: Which Standards?
CliniEco Medical supplies eye care, laboratory and dental consumables of the kind described in this article. MDEL #35334. This article is written for optometry, laboratory and procurement professionals and is not legal advice; the class of a device and the records kept by a clinic belong to the manufacturer and to the requirements that apply to it.
Frequently Asked Questions
Is a hemoglobin test a Class II device in the United States?
Yes. A whole blood hemoglobin assay is a Class II entry at 21 CFR 864.7500, and an automated hemoglobin system is a separate Class II entry at 21 CFR 864.5620.
How does Canada classify a hemoglobin test?
In Canada a hemoglobin test is an in vitro diagnostic device. Used in diagnosis it is Class II under Rule 4. Used outside a laboratory, at the point of care, it is a near patient device and is Class III under Rule 6.
Does the same chemistry really get two classes in Canada?
Yes, and the difference is where the test is run rather than what it measures. A laboratory analyser is Class II; a meter used at the bedside is Class III because it is a near patient device.
Why is a point-of-care hemoglobin meter Class III in Canada?
Because Rule 6 states that a near patient in vitro diagnostic device is classified as Class III, and hemoglobin is not on the short exception table in Rule 9, which covers pregnancy, fertility, cholesterol and microbiological media.
What does the class change for a supplier?
Both classes need a medical device licence under section 32 in Canada, but a Class III licence attracts more supporting evidence than a Class II one. In the United States both entries are Class II and reach the market through a 510(k) unless exempt.
Where is the definition of a near patient device written?
In the interpretation section of the Medical Devices Regulations, which defines a near patient in vitro diagnostic device as one intended for use outside a laboratory, for testing at home or at the point of care.
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