EFMB Written Test Study Guide 2026 – 300+ Questions on Combat Trauma, Prolonged Field Care & Military Medical Protocols

EFMB Written Test Study Guide
2026 Exam Questions with 100%
Correct Answers | Latest Update


Section 1 - Radiology: Imaging Trauma Patients in a Deployed Setting




The initial radiographic evaluation of a trauma patient begins with supine

Anterior-Posterior (AP) chest and pelvis radiographs taken in the trauma

bay usually with a(n) __________. - 🧠 ANSWER ✔✔portable x-ray machine


T/F: Computed Tomography scanning has been largely replaced by

Cervical Spine Radiographic Evaluation (CSRE) and should only be

,performed when CSRE is unavailable. - 🧠 ANSWER ✔✔FALSE. Cervical

Spine Radiographic Evaluation (CSRE) has been largely replaced by

Computed Tomography (CT) and should only be performed when a CT is

unavailable.

What is the lowest level of care equipped with a Computed Tomography

(CT) Scanner? - 🧠 ANSWER ✔✔Role 3


What is the lowest level of care equipped with a portable x-ray machine? -

🧠 ANSWER ✔✔Role 2


Members of the trauma team should have __________ aprons and thyroid

shields available near the trauma bay for radiation safety. - 🧠 ANSWER

✔✔lead


Distance is also protective from radiation exposure. If feasible based on the

patient's condition, any personnel without lead shielding should move a

short distance away from the x-ray unit. The recommended minimal

distance is __________ feet. - 🧠 ANSWER ✔✔Six (6)


While the FAST scan has been validated only in hemodynamically unstable

blunt trauma patients, it has become a standard tool in the trauma bay and

Emergency Department (ED) in most trauma patients. FAST stands for

,__________. - 🧠 ANSWER ✔✔Focused Abdominal Sonographic

Assessment for Trauma

FAST in combat trauma has a sensitivity of only 56% and and specificity of

__________. - 🧠 ANSWER ✔✔98%


T/F: The FAST exam remains the most sensitive test for hollow viscus

injury and mesenteric injury. - 🧠 ANSWER ✔✔FALSE. Diagnostic

Peritoneal Lavage (DPL) remains the most sensitive test for hollow viscus

injury and mesenteric injury.

T/F: At the Role 3, properly trained providers including radiologists,

surgeons, and emergency physicians, can perform and interpret FAST

scans in the emergency department on a hand held portable US device. - 🧠

ANSWER ✔✔TRUE


A FAST examination is performed with a portable hand-held machine most

commonly using a standard 3-7 MHz curved array __________ probe. - 🧠

ANSWER ✔✔Ultra Sound (US)


The standard FAST examination is focused on evaluating for the presence

of __________ in certain areas of the body. - 🧠 ANSWER ✔✔Free

Intraperitoneal Fluid

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, When performing a FAST examination on a patient, you inspect the right

upper quadrant. You are inspecting between which two (2) organs? - 🧠

ANSWER ✔✔Liver & Kidney


When performing a FAST examination on a patient, you inspect the left

upper quadrant. You are inspecting between which two (2) organs? - 🧠

ANSWER ✔✔Spleen & Kidney


An 18g __________ IV is typically desired for Computed Tomography IV

access. - 🧠 ANSWER ✔✔antecubital


T/F: The goal of Computed Tomography (CT) contrast injection is to

provide concurrent solid organ enhancement, arterial enhancement, and

pulmonary arterial. - 🧠 ANSWER ✔✔TRUE


T/F: When performing Computed Tomography (CT) scan on a Military

Working Dog, utilize a scanning protocol based on the adult settings to

include the doses of and rates of contrast administration. - 🧠 ANSWER

✔✔FALSE. Utilize a scanning protocol based on the pediatric settings to

include the doses of and rates of contrast administration.