Mixed Deck — All CTBS Topics Flashcards

When processing soft tissue allografts (e.g., tendons, ligaments), what is the primary function of low-dose gamma irradiation (< 20 kGy)?

Answer: To reduce bioburden without significantly compromising mechanical properties

Low-dose gamma irradiation is used to reduce microbial bioburden while minimizing radiation-induced damage to the collagen structure and mechanical integrity of soft tissue allografts.

In CTBS certification, what is the primary purpose of regulatory compliance programs?

Answer: To ensure adherence to laws and standards

Regulatory compliance programs are designed to ensure organizations follow applicable laws, regulations, and standards.

When recovering tissue from a donor with unknown HIV status, which precaution is MOST important during the recovery procedure?

Answer: Use double gloves and face shield

Standard and enhanced personal protective equipment including double gloving and face shields must be used when infectious status is unknown to protect recovery staff.

Which of the following is required by tissue banking standards?

Answer: Accurate documentation and donor consent

Tissue banking standards rigorously require accurate documentation and informed donor consent to ensure ethical and legal compliance. Detailed records track the entire tissue lifecycle, from donor screening to recipient implantation, providing essential traceability and accountability. Donor consent confirms the donor's authorization for tissue use, respecting individual autonomy and legal requirements.

The 'relevant communicable disease agents and diseases' (RCDADs) that must be tested for in tissue donors are defined in:

Answer: FDA regulations at 21 CFR Part 1271.3(r)

FDA defines RCDADs in 21 CFR Part 1271.3(r), establishing the federal standard for which communicable disease agents and diseases must be tested as part of donor eligibility determination.

During a QA audit of donor records, a tissue bank specialist finds that a donor consent form is missing a required signature. This is an example of:

Answer: A critical nonconformance

A missing required signature on a donor consent form is a critical nonconformance because it violates regulatory and accreditation requirements for donor eligibility documentation.

When a tissue bank medical director makes a determination of donor eligibility, this decision must be based on:

Answer: A review of all available records including physical assessment, medical/social history, and laboratory results

Donor eligibility determination requires integration of all available information: physical assessment, relevant medical records, next-of-kin interview, and laboratory testing.

Which professional attribute is most valued in storage and distribution within the CTBS field?

Answer: Accountability and commitment to standards

Accountability and commitment to professional standards build trust and ensure consistent, high-quality practice.

What is the recommended maximum residual moisture content for lyophilized bone allografts to ensure long-term stability at ambient temperatures?

Answer: ≤ 6%

Lyophilized bone allografts should have a residual moisture content of ≤6% to prevent microbial growth and chemical degradation during ambient temperature storage.

In musculoskeletal tissue recovery, the saphenous vein runs along which anatomical border of the leg, making it a landmark during surgical dissection?

Answer: Medial border of the tibia

The great saphenous vein travels along the medial aspect of the leg adjacent to the tibial border, making it a key landmark during lower extremity dissection.

Which of the following is a required element on a tissue allograft label under FDA 21 CFR Part 1271?

Answer: Distinct identification code linking the allograft to the donor

FDA requires a distinct identification code on each label so the allograft can be traced back to the donor and all associated records.

In the context of tissue donation, which layer of the cornea provides the majority of its structural tensile strength?

Answer: Stroma

The corneal stroma, composed of organized collagen lamellae, accounts for approximately 90% of corneal thickness and its tensile strength.

When documenting a musculoskeletal recovery, a specialist notes the iliotibial (IT) band. This structure is a thickening of which fascial layer?

Answer: Fascia lata of the thigh

The iliotibial band is a lateral thickening of the fascia lata, the deep fascia enveloping the thigh, running from the iliac crest to Gerdy's tubercle on the tibia.

Which scenario would most likely require a tissue bank to submit a Biological Product Deviation Report (BPDR) to the FDA?

Answer: A released allograft later found to have failed sterility testing after implantation

A sterility failure discovered after implantation represents a distributed HCT/P that may have caused serious injury, which must be reported as a BPDR under 21 CFR 1271.350.

What does the acronym 'UAGA' stand for in the context of tissue recovery?

Answer: Uniform Anatomical Gift Act

The Uniform Anatomical Gift Act (UAGA) is the model legislation governing the donation of human bodies and organs/tissues for medical purposes.

What is the primary concern with using high-dose gamma irradiation (> 25 kGy) to sterilize cortical bone allografts?

Answer: Significant reduction in compressive and torsional mechanical strength

High-dose gamma irradiation causes significant free radical-mediated damage to collagen cross-links, substantially reducing the compressive strength, fatigue resistance, and torsional properties of cortical bone.

In Certified Tissue Bank Specialist, what is the PRIMARY purpose of conducting regular safety drills and exercises?

Answer: To ensure personnel can respond effectively in emergencies

Regular safety drills ensure that all personnel are prepared to respond effectively during actual emergencies. Practice builds muscle memory, identifies gaps in emergency procedures, and improves overall response times.

What is the function of a 'change control' process in a tissue bank quality management system?

Answer: To provide a systematic process for evaluating, approving, and implementing changes to controlled documents, equipment, or processes

Change control ensures that any modifications to controlled processes, equipment, or documents are formally evaluated for quality and compliance impact before being implemented.

Which sterilization method is considered MOST compatible with maintaining the viability of living cellular tissue grafts?

Answer: Aseptic processing without terminal sterilization

Living cellular grafts (e.g., viable bone marrow or certain skin grafts) cannot withstand terminal sterilization and require rigorous aseptic processing to preserve cell viability.

Which of the following is a contraindication to tissue donation due to risk of disease transmission?

Answer: Active systemic bacterial sepsis

Active systemic bacterial sepsis is a contraindication to tissue donation because it poses a risk of transmitting infection to recipients.