TB Screening (TST/IGRA)

Tuberculosis (TB) screening is the process of identifying latent or active TB infections in individuals. In a correctional healthcare setting, the two most widely used screening methods are the Tuberculin Skin Test (TST) and Interferon-Gamma Release Assays (IGRA). Due to the high potential for disease spread in confined environments, timely and accurate TB screening is essential to protect both incarcerated individuals and staff.

The Importance of TB Screening in Corrections

People in correctional facilities face a greater risk of TB infection than the general population, largely due to shared living spaces, underlying health conditions, and limited access to preventive care before incarceration. Screening inmates at intake and periodically throughout custody helps detect infections early, plan treatment effectively, and prevent outbreaks.

Failure to identify and manage TB cases can lead to serious health outcomes, increased liability, and public health consequences. For correctional healthcare teams, a reliable screening protocol is both a clinical necessity and an operational responsibility.

Core Components of TB Screening

The following components form the foundation of a robust TB screening program in correctional care:

• Tuberculin Skin Test (TST): This method involves injecting a purified protein derivative (PPD) under the skin to gauge immune response. After 48 to 72 hours, the injection site is measured for swelling, which may indicate TB exposure.
  
• Interferon-Gamma Release Assays (IGRA): A blood test that detects immune reactivity to TB bacteria. Unlike the TST, IGRA results are not influenced by prior Bacille Calmette–Guérin (BCG) vaccination and only require a single patient encounter, making it especially practical in corrections.
  
• Intake Screening Protocols: All newly admitted individuals are evaluated for signs of TB infection or exposure history, often within the first 24 hours. This step is key to preventing immediate spread among the wider population.
  
• Annual and Targeted Screening: Continued monitoring focuses on individuals at higher risk, including those with compromised immune systems, a history of TB, or ongoing exposure. These protocols ensure long-term oversight and prevention.
  
• Documentation and Reporting: Accurate and timely recording of testing, results, and follow-up care is essential. Compliance with NCCHC, ACA, and public health requirements depends on thorough documentation.
  
• Isolation and Treatment Workflows: Prompt isolation of symptomatic or confirmed TB cases, followed by a clear treatment plan, helps contain potential infections and ensures proper clinical care.

How TB Screening Works in Practice

At intake, healthcare staff evaluate each individual for risk factors and symptoms of TB. Based on the person’s history and facility protocols, a TST or IGRA is performed. TSTs require a follow-up appointment within 48–72 hours for result interpretation, requiring careful coordination. IGRAs remove this burden by consolidating testing into a single visit, thereby significantly streamlining intake workflows.

When a TB infection is suspected or confirmed, the patient typically undergoes a chest X-ray and clinical evaluation. Positive cases are moved into medical isolation as needed, and treatment begins without delay.

In environments with high population turnover, such as jails and detention centers, maintaining strict screening procedures requires well-managed workflows. Missed follow-ups, poor recordkeeping, or delays in evaluation jeopardize both patient safety and regulatory compliance. Ensuring staff have the tools and protocols in place to stay on track is crucial.

Benefits of a Strong TB Screening Program

• Operational Efficiency: Streamlined, clearly defined workflows reduce interruptions to housing assignments and ease the logistical demands of multiple-visit testing methods.
  
• Regulatory Compliance: Aligning with CDC guidance and meeting the standards set by NCCHC and ACA positions facilities to pass audits and meet public health obligations.
  
• Inmate Health and Safety: Early identification and intervention protect individuals with underlying health risks and reduce the chance of facility-wide outbreaks.
  
• Documentation Accuracy: Centralized, detailed records improve communication between clinical teams and enable consistent tracking of care over time.
  
• Strategic Risk Reduction: A robust TB screening program helps facilities fulfill their duty of care, reduce the risk of costly legal claims, and demonstrate proactive healthcare management.

How CorrecTek Supports TB Screening

CorrecTek’s electronic health record platform supports every phase of the TB screening process, from intake to discharge. Real-time alerts help staff manage follow-up requirements with TSTs, while IGRA test orders and results are captured directly in the system. Integration with lab and imaging services enables care teams to respond more quickly and coordinate across departments.

With CorrecTek, administrators can track trends and performance indicators at scale, ensuring no cases are missed and all processes stay compliant. Our tools are built to help correctional facilities strengthen their infection control efforts and simplify the delivery of high-standard care. Connect with us to help your team manage TB screening with greater confidence and efficiency.