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Reduce Blood Waste Through Effective Temperature Monitoring

Written by Sonicu team | Jan 15, 2026 7:01:28 PM

Every two seconds, someone in the U.S. needs blood. From emergency surgeries to chronic conditions like Sickle Cell Anemia, the need is constant and often unpredictable. Safe transfusions would not be possible without readily available blood donations. These donations must be properly stored and carefully monitored across blood bank operations.

While this may seem straightforward, studies indicate that human error and improper storage are the leading causes of blood wastage today.

This is because blood banks face a constant balancing act. They must maintain enough supply for emergencies, keep inventory safe, and comply with strict temperature requirements all at once.

Through work with a wide range of customers, we’ve identified seven common and crucial areas where temperature monitoring can make a meaningful impact on blood preservation. 

Did You Know?

Since 2020, blood donation rates have declined across most age groups. Adults aged 65+ are the only group that donates more frequently today. This trend increases pressure on blood banks to manage limited supplies effectively.

While more than 6 million Americans donate blood each year, demand remains high due to the short shelf life of blood and blood products. Maintaining at least a seven-day supply is critical—making proper temperature control essential to preserving blood product inventory.

Where Temperature Monitoring Makes the Biggest Impact in Blood Banks

Blood products move through several departments before reaching a patient. With each handoff and change of environment, the products are at risk of temperature deviation, making consistent temperature control across the following touchpoints essential for product safety and effectiveness.

1. Collection & Initial Holding

Once blood is collected, it must be stabilized quickly. Units are typically placed on ice or moved into controlled storage immediately, but delays, busy collection sites, or temporary holding areas can introduce risk. Environmental fluctuations —especially temperature— are the most common and measurable threats during this stage.

Monitoring best practices:

  • Establish continuous temperature monitoring in initial storage areas
  • Set alerts that notify staff before blood leaves the acceptable range
  • Documentation of temperature conditions, alarm events, and power or network interruptions should be integrated into your monitoring system

Early visibility here helps prevent small oversights from becoming irreversible losses.

2. Transport & Transfer

Blood products are frequently transported between collection sites, labs, processing facilities, and hospitals. AABB standards require whole blood and red blood cells to remain between 1°C and 6°C during transportation.

During loading, unloading, and temporary storage holding, blood products are exposed to fluctuating conditions that are difficult to detect without a wireless monitoring solution.

Monitoring best practices:

  • Automate data monitoring with a wireless device that features cellular connectivity capabilities
  • Built-in storage with automatic recovery protects data if the cell signal drops during travel

Without this visibility, excursions could go undetected, putting patients at risk of receiving blood that is no longer safe to use.

3. Testing & Laboratory Environments

While blood units are screened, corresponding samples move through testing labs under strict protocols. If a sample fails, the associated unit is discarded. If it passes, it proceeds with processing.

Even though testing labs may not store final products, environmental conditions still matter.

Monitoring best practices:

  • Environmental conditions in testing areas should be monitored continuously
  • Documentation should be tied to excursion workflows
  • HVAC issues could influence temperature drift, and should also be monitored

These controls help maintain chain-of-custody confidence and audit readiness.

4. Component Processing & Storage

Processing turns one donation into three life-saving components. Each component – red blood cells, platelets, and plasma – has unique storage requirements and risks.

Red Blood Cells
Red blood cells can be refrigerated for up to 42 days. However, they’re extremely sensitive to temperature deviations in both directions.

Monitoring systems should:

  • Reflect the thermal behavior of blood, not just air temperature
  • Reduce false alarms caused by door openings or defrost cycles
  • Detect real excursions that threaten product viability

Platelets
For decades, it’s been best practice to store blood platelets at room temperature inside of an incubator with continuous agitation. In 2020, the FDA approved storing platelets in refrigerators to extend their usability from 5 days to 2 weeks. 

Major regulatory changes like this can change at any time. A monitoring system should be flexible enough to accommodate these shifts.

Monitoring best practices:

  • Cold storage, room temperature, and incubators should be continuously monitored according to acceptable ranges specific to the stored product
  • Utilize offline sensor/meter detection to indicate department-wide outages that impact other machinery (agitators, labeling systems, etc.)

Plasma & Rare Blood Types
Plasma is typically stored in medical freezers for up to one year, though ultra-low temperature units can extend product shelf life for several years. For long-term storage, rare blood types and specialized plasma samples may be cryopreserved in liquid nitrogen, where they can remain viable for over a decade.

A flexible monitoring system will have the safeguards necessary to protect frozen inventory accordingly.

Monitoring best practices:

  • Track freezer temperatures and LN₂ levels
  • Alert on leaks, low fill levels, or system failures
  • Provide documented proof of proper long-term storage

5. Distribution & Central Storage

Blood centers and distribution facilities manage large volumes of inventory under constant operational pressure. In these environments, manual checks are easily missed. Automation ensures no unit is overlooked in busy, high-volume settings.

Monitoring best practices:

  • Continuous monitoring across refrigerators, freezers, and holding areas
  • Automated alerts for temperature fluctuations and outages
  • Monitoring during outbound transport to hospitals

6. Transfusion Preparation & Warming

Before transfusion, blood must be handled carefully, especially during rapid or massive transfusions, where warming is required to prevent patient hypothermia.

Monitoring best practices:

  • Continuous monitoring of blood warmers
  • Verification that warming temperatures remain within safe limits
  • Documentation of warming protocols tied to each use

Failures at this stage directly affect patient safety, making visibility critical.

 7. Compliance, Audits & Documentation

Temperature requirements exist within an unforgiving window. Too warm, and blood degrades. Too cold, and ice crystals permanently damage cells.

Missing even one data point can result in:

  • Discarded inventory
  • Failed audits
  • Lost funding or accreditation

Manual monitoring increases the risk of human error, missed excursions, and incomplete documentation, especially in today’s understaffed healthcare environments.

Monitoring best practices:

  • 24/7 temperature monitoring
  • Documentation processes should be linked to your continuous monitoring system
  • Establish alarm protocols before conditions become unsafe

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Spending too much time on calibration? Sonicu’s SNAP Recalibration Program can do it for you. When you’re due for recalibration, we’ll ship you replacement probes. Simply take out the old sensor and plug in the new one, and the probe serial number will automatically link to the correct MAC address and start collecting data right away — it’s that easy!

Why Temperature Monitoring Automation Matters

Relying on staff to manually record temperatures introduces unnecessary risk. Excursions can occur between checks, failing equipment may go unnoticed, and documentation gaps can jeopardize compliance.

Modern automated monitoring systems eliminate these risks by:

  • Logging data continuously
  • Sending real-time alerts
  • Preserving records throughout outages
  • Producing audit-ready reports automatically

A Practical Checklist for Blood Bank Temperature Monitoring

To reduce waste and protect patients, confirm your monitoring strategy covers:

Collection

  • Temperature monitoring that mimics the stored contents, not just the air
  • Alarm and outage documentation

Transport

  • Wireless monitoring solutions for temporary holding areas
  • Data recovery in the event of connectivity loss during travel

Testing

  • Lab-specific environmental monitoring
  • Documentation tied to excursion workflows

Storage

  • Refrigerator monitoring for red blood cells, plasma, and cold-stored platelets
  • Incubator monitoring for platelets stored at room temperature
  • Freezer monitoring for plasma and rare blood types
  • After-hours alerts

Distribution

  • Scalable monitoring system to accommodate volume changes
  • Controlled storage monitoring for reserved units

Transfusion

  • Blood warmer monitoring and verification
  • Temperature tracking from bank to bedside

Compliance

  • Automated logs meeting AABB and FDA regulatory requirements
  • Complete audit trails and alarm histories

What This Means for Blood Bank Operations

Blood banks can’t control demand, but they can control risk

By focusing monitoring efforts on the most vulnerable points in storage, transport, and handling, facilities can reduce waste, strengthen compliance, and protect patient outcomes.

And the good news? All of this can be automated.

Facilities that automate their temperature monitoring and compliance tasks report less blood waste, smoother audits, and reduced labor costs than those that rely on manual tracking methods alone.

An advanced environmental monitoring system will provide all the features crucial for fully optimized blood bank operations:

  • 24/7 temperature monitoring across all blood product storage
  • Anytime, anywhere access to monitoring data 
  • Audit-ready documentation delivered to your email
  • Configurable, tiered alarm notifications based on urgency and escalation
  • Instant alarm notifications sent straight to your phone
  • Alarm history and excursion logs included in data reports
  • Built-in recovery features that protect your data during outages

Did you spot any gaps in your monitoring strategy? We can help assess your coverage and identify opportunities to bridge those gaps.

See What's Possible with Sonicu!