# Mission Hb Accuracy Guide: Mission Hb vs Laboratory Hemoglobin & CBC Results

**By Dr Pramod kumar** · 2026-09-27

A common question from users of portable hemoglobin meters is:

**“How accurate is the Mission Hb Hemoglobin Monitor compared with a laboratory CBC?”**

The Mission Hb Hemoglobin Monitor is designed as a portable point-of-care hemoglobin testing system for rapid measurement of hemoglobin using capillary or venous whole blood.

According to the manufacturer, the Mission Hb system provides:

-   Hemoglobin results in **under 15 seconds**
    
-   Approximately **10 µL** specimen requirement
    
-   Hb measurement range of **4.5–25.6 g/dL**
    
-   Calculated hematocrit range of **13–75%**
    
-   Automatic calibration
    
-   Within-run precision CV of **≤3%**
    
-   Total precision CV of **≤3%**
    

However, a Mission Hb result and a laboratory CBC result should not necessarily be expected to be numerically identical.

This guide explains why.

* * *

# What Does “Accuracy” Mean in Hemoglobin Testing?

Accuracy describes how closely a test result agrees with an accepted reference or comparison method.

Precision is different.

**Precision describes how consistently a system produces similar results when the same specimen is tested repeatedly under controlled conditions.**

A device can therefore be:

-   Precise but show some systematic difference from another method
    
-   Accurate overall but still show small variation between repeated measurements
    
-   Affected by specimen collection even when the instrument itself is functioning normally
    

Understanding this distinction is important when comparing portable Hb meters with central laboratory hematology analysers.

* * *

# Mission Hb Manufacturer Accuracy Data

ACON publishes comparison equations for Mission Hb using both venous and capillary whole blood.

For venous blood:

**Y = 0.9582X + 0.5673**  
**R² = 0.992**

For capillary blood:

**Y = 1.006X + 0.026**  
**R² = 0.993**

The high R² values indicate strong correlation in the manufacturer's comparison data.

ACON also specifies:

**Hb within-run precision CV: ≤3%**

and

**Hb total precision CV: ≤3%**.

These specifications indicate that the Mission Hb system is designed to provide reproducible point-of-care Hb measurements when used according to the manufacturer's procedure.

* * *

# Mission Hb vs Laboratory CBC: Are the Results Supposed to Be Exactly the Same?

Not necessarily.

A Mission Hb result and a laboratory CBC result may differ even when both systems are functioning correctly.

This is because the two measurements may involve different:

-   Specimen types
    
-   Sampling locations
    
-   Analytical methods
    
-   Instruments
    
-   Calibration systems
    
-   Sample preparation
    
-   Timing
    
-   Environmental conditions
    

A difference does not automatically mean either result is wrong.

The clinical importance of the difference depends on its magnitude and the circumstances in which the tests were performed.

* * *

# How Does Mission Hb Measure Hemoglobin?

The Mission Hb system uses:

**Reflectance photometry**

with a:

**Methemoglobin detection principle**

at a wavelength of approximately **525 nm**.

The meter analyses the reaction occurring on the compatible Mission Hb test strip after the whole-blood specimen has been applied.

This is different from the methods used by many automated hematology analysers in central laboratories.

Therefore, comparing results from two different analytical systems is not exactly the same as repeating the same test on the same instrument.

* * *

# Mission Hb Uses Whole Blood

The Mission Hb system is designed for:

-   **Capillary whole blood**
    
-   **Venous whole blood**
    

with an approximately **10 µL specimen volume**.

This is important because specimen type itself can influence the comparison.

* * *

# Capillary Blood vs Venous Blood

## Capillary Blood

Capillary blood is usually obtained through a finger-prick specimen.

Advantages include:

-   Rapid collection
    
-   Minimal equipment
    
-   Suitable for point-of-care testing
    
-   Convenient in field and clinic environments
    

However, capillary specimens can be more sensitive to collection technique.

Potential sources of variation include:

-   Excessive finger squeezing
    
-   Cold fingers
    
-   Inadequate blood flow
    
-   Residual alcohol
    
-   Moisture on the skin
    
-   Poor puncture technique
    
-   Inconsistent specimen volume
    

* * *

## Venous Blood

Venous blood is typically collected into an appropriate blood collection tube.

It is commonly used for complete blood count testing on automated hematology analysers.

Venous samples can provide a more standardised specimen when collected and handled correctly, particularly in a laboratory environment.

* * *

# Why Can Capillary and Venous Hb Results Differ?

Capillary and venous blood are collected from different parts of the circulation and by different techniques.

Differences may arise because of:

-   Local blood flow
    
-   Sampling technique
    
-   Tissue-fluid contamination
    
-   Finger squeezing
    
-   Specimen volume
    
-   Peripheral circulation
    
-   Temperature
    
-   Timing of collection
    

For this reason, comparing a finger-prick Mission Hb result directly with a venous laboratory CBC result may include both **method variation and specimen variation**.

* * *

# Finger Squeezing Can Affect the Specimen

A common error during capillary blood collection is excessive squeezing or “milking” of the finger.

Repeated strong squeezing may introduce tissue fluid into the specimen.

This can alter the composition of the sample reaching the test strip.

For better consistency:

-   Warm cold hands naturally where necessary.
    
-   Use an appropriate sterile lancet.
    
-   Allow adequate blood flow.
    
-   Avoid excessive squeezing.
    
-   Collect the required specimen according to the manufacturer's instructions.
    

* * *

# Residual Alcohol Can Affect the Sample

If alcohol is used before finger-prick collection, allow it to dry completely.

A wet puncture site can potentially dilute or contaminate the blood specimen.

The fingertip should therefore be:

**Clean and completely dry before lancing.**

* * *

# Why Sample Volume Matters

Mission Hb requires approximately:

# **10 µL whole blood**

The test system is designed around this specimen volume.

Inadequate sample collection may contribute to:

-   Incomplete strip filling
    
-   Test errors
    
-   Poor repeatability
    
-   Questionable results
    

Always follow the manufacturer's specimen-transfer procedure.

* * *

# Can Mission Hb Give Different Results on Repeat Testing?

Some variation between repeat measurements is possible with any quantitative laboratory or point-of-care test.

However, large differences should be investigated.

Check:

-   Whether a new strip was used each time
    
-   Sampling technique
    
-   Blood volume
    
-   Strip storage
    
-   Strip expiry
    
-   Environmental conditions
    
-   Coding/calibration
    
-   Meter condition
    

ACON specifies a Mission Hb within-run precision CV of **≤3%**, indicating the manufacturer's expected repeatability under controlled testing conditions.

* * *

# What Does CV Mean?

**CV** stands for **coefficient of variation**.

It is a commonly used statistical measure of precision.

In simple terms, a lower CV indicates less variation between repeated measurements under controlled conditions.

Mission Hb's manufacturer specifies:

**Within-run CV ≤3%**

and:

**Total precision CV ≤3%**.

This specification should not be interpreted as meaning that every real-world Mission Hb result will always be within exactly 3% of every laboratory CBC result.

Precision and comparison accuracy are different concepts.

* * *

# Why Can Mission Hb and Laboratory CBC Results Differ?

There are several possible reasons.

## 1\. Different Analytical Methods

Mission Hb uses reflectance photometry.

A laboratory hematology analyser may use another analytical principle.

* * *

## 2\. Different Specimens

The Mission Hb result may be from capillary blood while the CBC is from venous blood.

* * *

## 3\. Different Collection Times

Hemoglobin values obtained at different times are not necessarily direct duplicates.

Hydration, clinical condition and other physiological factors may change.

* * *

## 4\. Capillary Sampling Technique

Finger-prick technique can introduce additional pre-analytical variation.

* * *

## 5\. Specimen Volume

The Mission Hb system requires approximately 10 µL.

Poor specimen transfer can interfere with testing.

* * *

## 6\. Strip Condition

Strips may be affected by:

-   Expiry
    
-   Heat
    
-   Humidity
    
-   Contamination
    
-   Improper storage
    

Mission Hb strips should generally be stored at **2°C–30°C and ≤85% relative humidity**.

* * *

## 7\. Testing Temperature

The Mission Hb meter is specified for operation at approximately:

**10°C–40°C**

and:

**≤90% relative humidity**.

Testing outside permitted conditions can affect system performance.

* * *

## 8\. Laboratory Pre-Analytical Factors

Laboratory samples can also be influenced by:

-   Tube filling
    
-   Mixing
    
-   Clotting
    
-   Delay before testing
    
-   Sample handling
    
-   Instrument-specific factors
    

Therefore, comparison should consider the entire testing process rather than focusing only on the portable meter.

* * *

# What Does the Manufacturer Mean by “Equivalent to Laboratory Analysers”?

ACON describes Mission Hb as producing precise results equivalent to laboratory analysers and provides strong correlation data for both capillary and venous specimens.

In practical interpretation, this should not be understood to mean:

**Every Mission Hb result must exactly match every CBC analyser result digit-for-digit.**

Different test systems can correlate strongly while individual measurements still show some variation.

This distinction is particularly important when a result is close to a clinical decision threshold.

* * *

# Independent Research Can Produce Different Findings

Manufacturer validation data and independent real-world studies do not always produce identical results.

For example, a 2026 medRxiv preprint comparing a Mission Hb meter with an automated hematology analyser in 100 participants reported that the Mission system tended to produce lower Hb measurements in that specific study population and setting. The authors reported a mean bias of approximately **−1.55 g/dL** compared with the reference analyser.

However, this study was a **preprint and had not undergone peer review at the time of publication**, and its results came from one centre, one population and a relatively small sample. It should therefore not be treated as a universal performance estimate for every Mission Hb meter, laboratory or patient population.

This illustrates an important point:

**Actual agreement between point-of-care and laboratory systems depends on the device, specimen, operator, comparator analyser, population and testing conditions.**

* * *

# Should Mission Hb Be Used for Screening or Diagnosis?

Point-of-care hemoglobin meters are particularly useful where rapid Hb information is required.

Examples may include:

-   Point-of-care testing
    
-   Screening
    
-   Clinics
    
-   Field testing
    
-   Community testing programmes
    
-   Rapid preliminary assessment
    
-   Situations where immediate laboratory access is limited
    

However, an unexpected, clinically important or borderline result may require confirmation using an appropriate laboratory method.

The decision depends on the clinical context.

* * *

# When Should a Mission Hb Result Be Repeated?

A repeat measurement may be reasonable when:

-   Sample collection was clearly inadequate
    
-   Strip filling was incomplete
    
-   Testing technique was incorrect
    
-   The strip was damaged
    
-   An instrument error occurred
    
-   The result is unexpected
    
-   There is concern about strip storage
    
-   Testing conditions were unsuitable
    

Use a **new Mission Hb strip** for every repeat measurement.

Do not reuse the original test strip.

* * *

# When Should Laboratory Confirmation Be Considered?

Laboratory confirmation may be appropriate when:

-   The Mission Hb result is unexpectedly high or low
    
-   The result does not fit the person's symptoms or clinical condition
    
-   Repeated Mission Hb readings remain inconsistent
    
-   The result is close to an important clinical decision threshold
    
-   A definitive diagnosis is required
    
-   Clinical management depends on a highly accurate measurement
    
-   There is concern about the sample, strips or meter
    

Point-of-care testing should support appropriate clinical decision-making rather than replace necessary laboratory assessment.

* * *

# Should You Average Several Mission Hb Results?

Do not repeatedly test simply to obtain several values and calculate an average unless this forms part of a validated professional testing protocol.

Repeated testing can introduce further sampling variation.

If repeat results remain inconsistent, identify the reason rather than continuing indefinitely.

Review:

-   Specimen collection
    
-   Test strips
    
-   Storage
    
-   Calibration
    
-   Meter condition
    
-   Testing environment
    
-   Quality control
    

* * *

# Mission Hb and Calculated Hematocrit

Mission Hb provides a calculated hematocrit value.

The specified Hct range is:

**13–75%**.

It is important to understand that this is a **calculated value associated with the Hb measurement**, rather than an independently measured full CBC hematocrit generated by a multi-parameter hematology analyser.

Therefore, Mission Hb should not be considered equivalent to a full CBC analyser.

* * *

# Mission Hb Does Not Replace a Complete Blood Count

The Mission Hb system is designed primarily for hemoglobin measurement and calculated Hct.

A laboratory CBC can provide additional information such as:

-   Red blood cell count
    
-   White blood cell count
    
-   Platelet count
    
-   MCV
    
-   MCH
    
-   MCHC
    
-   RDW
    
-   Differential white-cell parameters depending on the analyser
    

Mission Hb does not provide this complete hematological profile.

So:

**Mission Hb = rapid Hb measurement + calculated Hct**

while:

**CBC = broader hematology assessment**

* * *

# Mission Hb Accuracy Checklist

For the most reliable Mission Hb testing possible:

✓ Use genuine compatible Mission Hb test strips  
✓ Check strip expiry  
✓ Store strips at 2°C–30°C  
✓ Protect strips from moisture  
✓ Use approximately 10 µL whole blood  
✓ Use correct capillary sampling technique  
✓ Allow alcohol to dry completely  
✓ Avoid excessive finger squeezing  
✓ Follow the correct coding/calibration procedure  
✓ Use the meter within 10°C–40°C  
✓ Use a fresh strip for every test  
✓ Perform quality control where appropriate  
✓ Confirm clinically important unexpected results when necessary

* * *

# Mission Hb Technical Performance Summary

| Specification | Mission Hb |
| --- | --- |
| Method | Reflectance photometry |
| Detection principle | Methemoglobin |
| Wavelength | 525 nm |
| Sample | Capillary or venous whole blood |
| Sample volume | 10 µL |
| Test time | <15 seconds |
| Hb measurement range | 4.5–25.6 g/dL |
| Calculated Hct range | 13–75% |
| Calibration | Automatic |
| Within-run precision CV | ≤3% |
| Total precision CV | ≤3% |
| Operating temperature | 10°C–40°C |
| Strip storage | 2°C–30°C |
| Strip storage humidity | ≤85% RH |

Manufacturer specifications: ACON Laboratories.

* * *

# Mission Hb vs Laboratory CBC: Quick Comparison

| Feature | Mission Hb | Laboratory CBC |
| --- | --- | --- |
| Main purpose | Rapid Hb testing | Comprehensive blood-cell analysis |
| Hb measurement | Yes | Yes |
| Hct | Calculated | Usually analyser-generated |
| Capillary sample | Yes | Depends on laboratory procedure |
| Venous sample | Yes | Common |
| Sample volume | Approx. 10 µL for Mission Hb | Varies by analyser/tube |
| Result speed | <15 seconds | Depends on laboratory workflow |
| Portable | Yes | Usually no |
| RBC indices | No  | Yes |
| WBC count | No  | Yes |
| Platelet count | No  | Yes |
| Best use | Rapid point-of-care Hb measurement | Comprehensive hematology evaluation |

The two systems therefore serve related but different purposes.

* * *

# Frequently Asked Questions

## How accurate is the Mission Hb meter?

ACON specifies within-run and total precision CV of **≤3%** and publishes high correlation values against comparison methods for both capillary and venous blood. Real-world results can still vary depending on specimen collection, strips, testing conditions and the comparison analyser.

## Will Mission Hb give exactly the same result as a CBC?

Not necessarily. Different specimens and analytical methods can produce numerical differences.

## Is capillary Hb the same as venous Hb?

The values may be similar but are not guaranteed to be identical. Collection technique can particularly affect capillary specimens.

## Which is more useful: Mission Hb or CBC?

They serve different purposes. Mission Hb provides rapid point-of-care Hb and calculated Hct, while a CBC provides a much broader hematology profile.

## Why does my Mission Hb result differ from my laboratory result?

Possible reasons include specimen type, collection technique, testing time, analytical method, strip condition and normal analytical variation.

## Should I repeat an unexpected Mission Hb result?

A repeat using a new strip and correct technique may be appropriate. Clinically important or persistently unexpected results may require laboratory confirmation.

## Does Mission Hb measure hematocrit directly?

Mission Hb provides a **calculated hematocrit value** based on the system's Hb measurement.

## Can poor strip storage affect accuracy?

Yes. Mission Hb strips should be stored according to the manufacturer's conditions, generally **2°C–30°C and ≤85% RH**.

* * *

# Related Mission Hb Guides

## Mission Hemoglobin Monitor & Test Strips – Complete Guide

Learn about the Mission Hb system, specifications, measurement method and available configurations.

`/blogs/knowledge-hub/mission-hemoglobin-monitor-test-strips-complete-guide`

## How to Use Mission Hb Hemoglobin Monitor

Follow the complete Mission Hb testing procedure.

`/blogs/knowledge-hub/how-to-use-mission-hemoglobin-monitor`

## Mission Hb Test Strip Compatibility Guide

Learn which strips work with Mission Hb and why strips from different Hb systems should not be interchanged.

`/blogs/knowledge-hub/mission-hb-test-strip-compatibility-guide`

## Mission Hb Troubleshooting Guide

Check common causes of strip errors, inadequate samples, unexpected results and repeated testing problems.

`/blogs/knowledge-hub/mission-hb-meter-troubleshooting-error-guide`

## Mission Hemoglobin Strip Expiry & Storage Guide

Learn how expiry, heat, humidity and handling can affect Mission Hb test strips.

* * *

# Mission Hb Products Available from Microsidd

## Mission Hb Hemoglobin Monitor with 10 Strips

Portable Mission Hb system supplied with starter strips for rapid hemoglobin testing.

**View product:**  
[https://microsidd.com/products/mission-hb-hemoglobin-monitor-with-10-strips](https://microsidd.com/products/mission-hb-hemoglobin-monitor-with-10-strips)

## Mission Hemoglobin Test Strips – Pack of 50

Compatible refill strips for the Mission Hb Hemoglobin Monitor.

**View product:**  
[https://microsidd.com/products/mission-hb-strips-pack-of-50-strips](https://microsidd.com/products/mission-hb-strips-pack-of-50-strips)

## Mission Hb Monitor + 50-Strip Refill Combo

Suitable for users who require the Mission Hb monitor together with a larger refill quantity.

**View product:**  
[https://microsidd.com/products/mission-hb-monitor-with-50-strips](https://microsidd.com/products/mission-hb-monitor-with-50-strips)

* * *

## Important Note

This article is intended for educational purposes and explains factors that may influence agreement between Mission Hb point-of-care measurements and laboratory hemoglobin testing.

A portable Hb result should be interpreted in the context of the person's clinical condition, specimen quality and testing procedure.

Unexpected, borderline or clinically important Hb results may require confirmation using an appropriate laboratory method and professional medical evaluation.

## Buy Genuine Mission Hb Products from Microsidd.com

Microsidd supplies Mission Hb meters, compatible Mission Hb test strips and other diagnostic products for laboratories, clinics, healthcare professionals and individual users.

Before ordering, verify the **exact meter model, compatible strip type, pack size and product specifications**.

Explore Mission Hb and other hemoglobin testing products at **Microsidd.com**.

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> Source: [Microsidd India](https://microsidd.com/blogs/knowledge-hub/mission-hb-accuracy-vs-lab-cbc)