How Does the Microsidd HCV Rapid Test Work?

The Microsidd HCV 10 Minutes Fast Self Test Kit is a rapid home-screening test designed to detect antibodies to hepatitis C virus (Anti-HCV) using a small fingerstick whole-blood specimen.

The current product generally provides a result in approximately 10 minutes.

The three broad result categories are:

• Reactive
• Non-Reactive
• Invalid

However, an HCV antibody rapid test does not directly determine whether hepatitis C virus is currently present in the blood.

A Reactive result means HCV antibodies were detected and should be followed by appropriate professional evaluation and HCV RNA testing to determine whether current infection is present.

Important: The exact blood quantity, buffer quantity and interpretation window must always come from the Instructions for Use supplied with the exact kit. Never copy these values from another HCV rapid test.

What Does the HCV Rapid Test Detect?

The Microsidd HCV Self Test detects Anti-HCV antibodies.

These are antibodies produced by the immune system after exposure to hepatitis C virus.

The rapid test therefore helps answer:

“Are antibodies associated with previous HCV exposure detectable?”

It does not directly answer:

“Is hepatitis C virus currently present?”

That question requires an appropriate HCV RNA test.

Read the complete pillar guide:

HCV Rapid Test Kit Complete Guide: Hepatitis C Antibody Screening, Results & HCV RNA Confirmation

What Is Included in the Microsidd HCV Mono Pack?

The current product configuration typically includes:

• 1 HCV rapid-test device
• 1 sterile lancet
• Capillary dropper or sample-collection device
• Buffer solution
• Alcohol swab
• Instruction leaflet

Contents may vary slightly depending on the packaging or manufacturing batch, so check the actual kit before testing.

What Specimen Does the Microsidd HCV Test Use?

The current Microsidd HCV 10 Minutes Fast Self Test Kit uses a small fingerstick whole-blood specimen.

Do not substitute another sample simply because another HCV assay may accept it.

Do not use:

• Urine
• Saliva
• Another biological fluid
• A specimen type specified only for another HCV product

unless the exact manufacturer's instructions specifically permit it.

Before You Start the HCV Test

Before opening the foil pouch, check:

• The correct HCV product has been selected
• The test has not expired
• The foil pouch is sealed and undamaged
• The kit has been stored appropriately
• The sterile lancet packaging is intact
• The sample-collection device is available
• The supplied HCV test buffer is available
• The instruction leaflet is available
• You have a timer ready

Do not start testing and then search for the instructions after the finger has already been pricked.

Step 1 — Read the Exact Instructions for Use

Read the leaflet supplied with your exact HCV kit before collecting blood.

Confirm:

• The specimen quantity required
• Where the blood should be applied
• The exact buffer quantity
• Where the buffer should be added
• When timing begins
• The correct reading time
• The latest permitted interpretation time
• The Reactive result pattern
• The Non-Reactive result pattern
• The Invalid result pattern

Do not use instructions from another HCV rapid-test brand.

Step 2 — Wash and Dry Your Hands

Wash your hands thoroughly with soap and water.

Dry them completely before beginning.

Prepare the kit on a clean, dry, well-lit surface.

Keeping all components ready before using the lancet helps the procedure move smoothly once blood has been collected.

Step 3 — Open the Foil Pouch Only When Ready

Remove the HCV test cassette from its protective pouch only when you are ready to perform the test.

Place the cassette on a:

• Clean
• Dry
• Flat
• Stable

surface.

Do not leave an opened test device exposed for an extended period.

Step 4 — Clean the Fingertip

Use the supplied alcohol swab to clean the selected fingertip according to the product instructions.

Allow the site to be appropriately prepared before using the sterile lancet.

Step 5 — Use the Sterile Lancet

Use the supplied sterile single-use lancet according to the instructions to obtain a small drop of blood.

Never reuse or share the lancet.

Once used, the lancet should be disposed of safely.

Step 6 — Collect the Exact Amount of Blood

Use the supplied capillary dropper or sample-collection device to collect the blood specimen.

Use only the quantity specified in the enclosed IFU.

Do not estimate the volume.

Do not substitute:

• A household dropper
• An HIV-test dropper
• An HBsAg-test dropper
• A syphilis-test collection device
• Another unvalidated pipette or capillary tube

Why Does the Correct Blood Quantity Matter?

Lateral-flow rapid tests are designed to operate with a defined relationship between:

• Blood specimen
• Buffer
• Test membrane
• Diagnostic reagents

Too little blood may interfere with appropriate specimen delivery.

Too much blood may interfere with migration or make the result difficult to interpret.

More blood does not make the test more sensitive.

Step 7 — Apply the Blood to the Correct Sample Area

Transfer the collected specimen to the sample well or location identified in the exact product instructions.

Do not place blood directly onto:

• The test-line region
• The control-line region
• The result window
• Any opening not identified as the sample application point

If blood is accidentally placed in the wrong location, do not automatically assume that the resulting test remains valid.

Step 8 — Add the Supplied Buffer

Add the exact amount of buffer specified in the instruction leaflet.

The buffer is part of the diagnostic system.

Do not add extra buffer simply because the specimen appears to be moving slowly.

Likewise, do not deliberately use less buffer than instructed.

Can Water or Saline Replace HCV Test Buffer?

No substitution should be made unless explicitly authorised by the manufacturer.

Do not replace the supplied HCV buffer with:

• Water
• Saline
• HIV-test buffer
• HBsAg-test buffer
• Syphilis-test buffer
• Buffer from another HCV rapid-test brand

even when the liquids look similar.

Step 9 — Start the Timer

Start timing at the point specified in the exact test instructions.

The current Microsidd product information states that results are generally available in approximately 10 minutes.

Always follow the exact valid reading time and maximum interpretation window supplied with your actual kit.

Use a timer rather than estimating the elapsed time.

Step 10 — Do Not Read the Test Too Early

The specimen and reagents require adequate time to migrate through the device and develop the test reaction.

Even if the control becomes visible quickly, do not report the result before the manufacturer-specified development period has passed.

Step 11 — Do Not Read the Test Too Late

A rapid-test cassette should be interpreted only within its manufacturer-defined reading window.

Visual changes occurring after that period may not be valid for interpretation.

Do not:

• Leave the test on a table for an hour
• Return later
• See a new mark
• Change the original result

based on a change outside the valid interpretation period.

Step 12 — Check the Control Before Interpreting the HCV Result

Before looking at the test region, confirm that the required control indicator has developed according to the product's exact result diagram.

If the required control does not appear:

The HCV test is Invalid.

An Invalid test cannot be reported as either Reactive or Non-Reactive.

Step 13 — Interpret the Result Using the Exact IFU

Use only the result diagram supplied with the exact Microsidd HCV product.

Do not interpret the cassette using:

• An internet image of another HCV kit
• An HIV-test diagram
• An HBsAg-test diagram
• A syphilis-test diagram
• A photograph from another manufacturer

The broad result categories are:

• Reactive
• Non-Reactive
• Invalid

What Does a Reactive HCV Rapid Test Mean?

A Reactive result means anti-HCV antibodies were detected by the screening assay.

This indicates previous exposure to hepatitis C virus but does not by itself establish whether HCV is currently present.

A Reactive antibody result may occur in someone with:

• Current hepatitis C infection
• Previous infection that cleared naturally
• Previous infection that was successfully treated and cured
• An antibody result requiring further laboratory clarification

The appropriate next step is professional evaluation and HCV RNA testing.

Why Is HCV RNA Needed After a Reactive Rapid Test?

The antibody test and RNA test answer different questions.

Anti-HCV rapid test:
Were antibodies associated with HCV exposure detected?

HCV RNA test:
Is hepatitis C virus currently present?

This produces the important pathway:

Anti-HCV Reactive
↓
HCV RNA testing
↓

RNA Detected → Current HCV infection

RNA Not Detected → No current HCV infection in most situations

Read:

HCV Antibody Reactive vs HCV RNA: What Is the Difference?

What Does a Non-Reactive HCV Result Mean?

A Non-Reactive result means anti-HCV antibodies were not detected by the test.

For many users this is reassuring.

However, recent infection may occur before antibodies have developed to detectable levels.

If there has been a recent significant exposure, professional evaluation may still be appropriate.

Can Someone Have HCV Even When the Antibody Test Is Non-Reactive?

Yes, particularly during very early infection.

HCV RNA can become detectable before anti-HCV antibodies.

Therefore, someone tested shortly after exposure can potentially have:

Anti-HCV Non-Reactive

but:

HCV RNA Detected.

When recent exposure is suspected, HCV RNA testing may therefore be more appropriate than relying only on antibody screening.

What Does an Invalid HCV Test Mean?

An Invalid result means the cassette did not satisfy the validity requirements specified by the manufacturer.

Possible reasons can include:

• Incorrect blood quantity
• Incorrect buffer quantity
• Wrong testing procedure
• Insufficient migration
• Expired test
• Damaged test device
• Improper storage

If the required control is absent, do not interpret the cassette as Non-Reactive.

Follow the exact product instructions regarding repeat testing with a new device.

Quick HCV Rapid-Test Workflow

Step	Action
1	Read the exact Instructions for Use.
2	Check expiry date and pouch integrity.
3	Wash and dry hands.
4	Place the HCV cassette on a clean, flat surface.
5	Clean the fingertip.
6	Use the sterile single-use lancet.
7	Collect the exact IFU-specified amount of fingerstick blood.
8	Apply blood to the correct sample area.
9	Add the exact IFU-specified amount of supplied buffer.
10	Start the timer.
11	Read only within the valid interpretation window.
12	Check that the control is valid.
13	Interpret as Reactive, Non-Reactive or Invalid.
14	If Reactive, seek appropriate HCV RNA testing.

Can You Add More Blood if the HCV Test Does Not Run?

Do not automatically add more blood after the procedure has already started.

Doing so changes the specimen amount from the validated procedure.

If a significant procedural error has occurred, follow the product instructions regarding repeat testing with a new device.

Can You Add Extra Buffer if the Test Moves Slowly?

Do not repeatedly add buffer in an attempt to make the cassette run faster.

Use the exact quantity specified in the IFU.

Both too much and too little buffer can affect test performance.

Can Buffer from Another Test Kit Be Used?

Do not assume that rapid-test buffers are interchangeable.

Use only the buffer supplied or specifically approved for the exact HCV product.

Buffer from an HIV, HBsAg or syphilis test should not be substituted merely because the liquid looks the same.

Can the HCV Cassette Be Reused?

No.

The Microsidd HCV Self Test is intended for single use only.

Once blood and buffer have migrated through the device, the cassette cannot be reset or reused reliably.

Can the Lancet Be Reused?

No.

The lancet should be used once and disposed of safely.

Never share a blood-testing lancet with another person.

Should a Faint HCV Test Line Be Ignored?

Do not decide that a faint reaction is clinically unimportant solely because it appears lighter than expected.

The result must be interpreted using:

• The exact manufacturer result diagram
• The manufacturer's definition of a Reactive result
• A valid control
• The correct interpretation time

Do not use another HCV brand's line photograph as the interpretation standard.

Does a Darker HCV Test Line Mean More Virus?

No.

A qualitative Anti-HCV rapid test does not measure HCV RNA.

Line darkness cannot reliably determine:

• HCV viral load
• Whether infection is acute or chronic
• Severity of liver disease
• How long infection has been present
• Whether treatment is required

If viral-load information is needed, an appropriate quantitative HCV RNA test is required.

Can the Rapid Test Tell Whether Hepatitis C Is Acute or Chronic?

No.

An antibody result alone cannot determine whether infection is:

• Recent
• Chronic
• Previously cleared
• Previously cured

Current infection first needs to be established with HCV RNA, after which clinical history and follow-up help determine the infection context.

Can the Test Tell Whether the Liver Is Damaged?

No.

An HCV antibody rapid test does not measure liver injury or fibrosis.

People with current HCV infection may undergo separate assessment such as:

• ALT
• AST
• Platelet count
• FIB-4
• Other fibrosis assessment
• Imaging where clinically indicated

Can the HCV Antibody Test Be Used After Treatment to Check for Cure?

No.

Anti-HCV antibodies commonly remain detectable after successful treatment.

A person who has been cured can therefore still have a Reactive HCV antibody test.

Treatment response is assessed with appropriate HCV RNA testing.

What If I Previously Had Hepatitis C and the Rapid Test Is Still Reactive?

This can be expected.

Anti-HCV antibodies often remain detectable after:

• Natural viral clearance
• Successful antiviral treatment

A persistently Reactive antibody test does not by itself mean that hepatitis C has returned.

Can Someone Get Hepatitis C Again After Being Cured?

Yes.

Successful treatment does not provide reliable immunity against reinfection.

If someone with known persistent HCV antibodies has a new exposure, repeating the antibody test is usually not sufficient to detect reinfection because it may already remain Reactive.

HCV RNA testing becomes particularly important in that situation.

What If the HCV Test Is Non-Reactive After a Recent Exposure?

Do not assume that a very early Non-Reactive antibody test always excludes infection.

If the exposure was recent, seek professional advice about appropriate HCV RNA testing.

RNA becomes detectable earlier than antibodies.

What If the HCV Rapid Test Is Reactive at Home?

Do not panic.

Do not repeatedly perform antibody tests until one becomes Non-Reactive.

The more useful next step is:

Professional evaluation → HCV RNA testing.

If HCV RNA is detected, current infection is present and treatment assessment can begin.

If HCV RNA is not detected, there is generally no current infection.

What If the HCV Test Is Non-Reactive but Symptoms Are Present?

Symptoms compatible with hepatitis should be professionally evaluated regardless of a home antibody result.

Possible symptoms can include:

• Fatigue
• Reduced appetite
• Nausea
• Abdominal discomfort
• Dark urine
• Pale stools
• Jaundice

These symptoms are not specific to HCV and can have many other causes.

HCV Rapid Testing During Pregnancy

HCV can be transmitted from mother to child, so hepatitis C testing can be relevant during pregnancy.

A Reactive maternal anti-HCV test means antibodies were detected.

It does not by itself establish current maternal HCV infection.

The next step is HCV RNA testing.

Continue through the maternal pathway:

• Antenatal Infection Screening: HIV, Syphilis, Hepatitis B & HCV
• HCV Testing During Pregnancy & Mother-to-Child Transmission

Does a Reactive Maternal HCV Antibody Test Mean the Baby Has HCV?

No.

A maternal antibody test does not diagnose hepatitis C infection in the baby.

First, current maternal infection should be determined with HCV RNA testing.

If the mother has current HCV infection, the infant requires an appropriate postnatal testing pathway.

Safe Disposal After HCV Fingerstick Testing

After completing the test:

• Do not reuse the lancet
• Do not reuse the cassette
• Dispose of the lancet safely as a sharp
• Do not leave blood-contaminated materials exposed
• Follow applicable local disposal guidance
• Wash your hands after testing

Common HCV Rapid-Test Mistakes to Avoid

• Using an expired test
• Using a cassette from a damaged pouch
• Using the wrong specimen
• Guessing the blood quantity
• Using another kit's collection device
• Using the wrong buffer
• Adding extra buffer
• Reading the test too early
• Reading the test too late
• Ignoring an absent control
• Calling an Invalid test Non-Reactive
• Using another brand's result diagram
• Using line darkness to estimate viral load
• Assuming Reactive antibody automatically means current infection
• Using an antibody rapid test to assess treatment cure
• Assuming Non-Reactive antibody always excludes a very recent infection

These issues will be covered in detail in:

HCV Rapid Test Do's, Don'ts & Common Errors

Frequently Asked Questions

How do I use the Microsidd HCV 10 Minutes Fast Self Test Kit?

Wash and dry your hands, clean the fingertip, use the sterile lancet, collect the IFU-specified amount of fingerstick whole blood using the supplied collection device, apply the specimen to the correct test area, add the specified buffer quantity, wait for the required development time and interpret the result according to the exact supplied instructions.

How much blood should I add?

Use the exact blood quantity stated in the instruction leaflet supplied with your test. The public Microsidd product page does not publish a universal numerical specimen volume, so the amount should not be guessed or copied from another HCV kit.

How many drops of buffer should I add?

Use the exact quantity specified in the enclosed Instructions for Use. Do not use another HCV product's buffer-drop instructions.

How long does the Microsidd HCV rapid test take?

The current product information states that results are generally available in approximately 10 minutes. Follow the exact valid reading window in the supplied leaflet.

What sample does the HCV self-test use?

The current product uses a small fingerstick whole-blood sample.

What does the HCV rapid test detect?

It detects antibodies to hepatitis C virus, called anti-HCV antibodies.

Does a Reactive HCV rapid test mean I currently have hepatitis C?

Not necessarily. A Reactive result means anti-HCV antibodies were detected. HCV RNA testing is needed to determine whether current infection is present.

What does a Non-Reactive result mean?

It means anti-HCV antibodies were not detected by the assay. Recent infection may not yet be detectable by antibody testing.

What does Invalid mean?

Invalid means the test failed its required validity criteria and cannot be interpreted as Reactive or Non-Reactive.

What if no control line appears?

Treat the result as Invalid and follow the product instructions regarding repeat testing with a new device.

Can a faint HCV line be ignored?

Interpret visible reactions according to the exact manufacturer result criteria and valid reading window rather than using line darkness to decide clinical importance.

Does a darker HCV line mean more virus?

No. A qualitative anti-HCV rapid test does not measure HCV RNA or viral load.

Can the HCV rapid test tell whether my liver is damaged?

No. Liver injury and fibrosis require separate clinical assessment.

Can I use this test after HCV treatment to check whether I am cured?

No. Anti-HCV antibodies commonly remain Reactive after cure. Appropriate HCV RNA testing is used to determine whether virus remains.

Why is my HCV antibody test still Reactive after cure?

Anti-HCV antibodies commonly persist after the virus has been successfully eliminated.

Can I get HCV again after treatment?

Yes. Successful treatment does not provide reliable immunity against reinfection.

What should I do after a recent possible HCV exposure if the rapid test is Non-Reactive?

Seek professional evaluation. HCV RNA testing may be appropriate because viral RNA can become detectable before HCV antibodies.

Can I use another rapid-test buffer with the HCV cassette?

No substitution should be made unless explicitly authorised by the manufacturer.

Can I reuse the HCV test cassette?

No. The test is intended for single use only.

Can I reuse the lancet?

No. Never reuse or share a single-use blood lancet.

What should I do after a Reactive home test?

Seek professional evaluation and appropriate HCV RNA testing to determine whether current HCV infection is present.

What should I do if I am pregnant and the test is Reactive?

Contact your antenatal healthcare professional for HCV RNA testing and appropriate maternal assessment. A Reactive antibody result alone does not establish current infection or diagnose the baby.

Continue Through the Microsidd HCV / Hepatitis C Hub

• HCV Rapid Test Kit Complete Guide
• HCV Rapid Test: Reactive vs Non-Reactive Results
• HCV Rapid Test Do's, Don'ts & Common Errors
• HCV Rapid Test Storage & Expiry Guide
• HCV Antibody Reactive vs HCV RNA: What Is the Difference?
• HCV Testing During Pregnancy & Mother-to-Child Transmission

Return to the Maternal & Infectious Disease Screening Pathway

• Pregnancy Confirmed? First Antenatal Visit & Important Screening Tests
• Antenatal Infection Screening: HIV, Syphilis, Hepatitis B & HCV
• Hepatitis B / HBsAg Screening During Pregnancy
• Syphilis Screening During Pregnancy & Prevention of Congenital Syphilis

View the Microsidd HCV 10 Minutes Fast Self Test Kit

Microsidd HCV 10 Minutes Fast Self Test Kit – 1 Test Mono Pack

The current product is a single-use home-screening test designed to detect anti-HCV antibodies using fingerstick whole blood, with results generally available in approximately 10 minutes.

Always follow the exact supplied Instructions for Use for specimen quantity, buffer quantity, testing procedure and interpretation timing.

Medical Information Notice

This article is intended for general educational and product-information purposes. It does not replace the manufacturer's Instructions for Use, hepatitis C laboratory diagnosis, medical consultation or treatment advice from a qualified healthcare professional.

A Reactive anti-HCV rapid-test result means antibodies to hepatitis C virus were detected. It does not by itself establish current active HCV infection. Appropriate HCV RNA testing is required to determine whether hepatitis C virus is currently present.

A Non-Reactive antibody result may not exclude very recent infection before a detectable antibody response has developed. Recent possible HCV exposure may require HCV RNA testing or other professional follow-up.

Anti-HCV antibody testing should not be used to determine whether hepatitis C treatment has been successful because antibodies commonly remain detectable after cure.

Pregnant women with Reactive anti-HCV screening results should receive professional evaluation to establish whether current infection is present and whether maternal and infant follow-up is required.