cliot (version 1.0.0)

abc_massive_transfusion: Assessment of Blood Consumption (ABC) Score for Massive Transfusion

Description

Calculates the ABC Score to predict the need for massive transfusion in adult trauma patients. The score uses four non-laboratory variables available early in the trauma resuscitation to identify patients who may benefit from activation of a Massive Transfusion Protocol (MTP).

Usage

abc_massive_transfusion(penetrating_mechanism, positive_fast, sbp_mmHg, hr_bpm)

Value

A list containing:

Total_Score

The sum of risk factors present (Range 0-4).

Interpretation

Clinical interpretation indicating likelihood of needing massive transfusion (Score >= 2 suggests MTP activation).

Arguments

penetrating_mechanism

Numeric (0 or 1). Was the mechanism of injury penetrating? 1 = Yes, 0 = No.

positive_fast

Numeric (0 or 1). Was the Focused Assessment with Sonography for Trauma (FAST) positive? 1 = Yes, 0 = No.

sbp_mmHg

Numeric. Arrival Systolic Blood Pressure in mmHg. (1 point is added if SBP <= 90).

hr_bpm

Numeric. Arrival Heart Rate in beats per minute. (1 point is added if HR >= 120).

References

Nunez TC, Voskresensky IV, Dossett LA, et al. Early prediction of massive transfusion in trauma: simple as ABC (assessment of blood consumption)? J Trauma. 2009;66(2):346-352. doi:10.1097/TA.0b013e3181961c35

Examples

# Example 1: MTP Likely
# Penetrating trauma, Positive FAST, Hypotensive, Tachycardic
abc_massive_transfusion(1, 1, 85, 130)

# Example 2: MTP Unlikely
# Blunt trauma, Negative FAST, Stable vitals
abc_massive_transfusion(0, 0, 110, 88)