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EFMB Written Test Study Guide – Actual Exam Questions and Correct Verified Answers (Latest Exam Update)

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Pass the Expert Field Medical Badge (EFMB) written test on your first attempt with this comprehensive study guide featuring actual exam questions and verified correct answers. Covers radiology in deployed settings (FAST exam with ultrasound, liver/kidney right upper quadrant, spleen/kidney left upper quadrant, 18G antecubital IV for CT contrast, CT goal of concurrent solid organ/arterial/pulmonary arterial enhancement, CT for military working dogs using pediatric settings, Role 3 lowest level with CT scanner, Role 2 with portable X-ray, lead aprons and thyroid shields, minimum 6 feet distance for non-shielded personnel, FAST sensitivity 56% specificity 98%, DPL most sensitive for hollow viscus injury). Aural blast injury (acoustic trauma symptoms: hearing loss, tinnitus, aural fullness, recruitment, difficulty localizing sounds, difficulty hearing in noisy background, vertigo; tympanic membrane most sensitive to primary blast injury; smaller perforations more likely spontaneous closure within 8 weeks; House-Brackmann grading for facial nerve; debris in ear canal treat with fluoroquinolone/steroid topical antibiotic, do not irrigate; hearing loss persisting 72 hours warrants audiogram; TTS 25 dB in 3 frequencies consider steroids). Burn care (indications for intubation: comatose, symptomatic inhalation injury, deep facial burns, 40% TBSA; 20% TBSA high hypothermia risk; do not debride blisters in field, cover with dry gauze; rule of nines for TBSA calculation; 1st degree superficial not included in fluid resuscitation; Rule of 10s for fluid resuscitation (10 mL/hr x %TBSA for 40-80kg, add 100 mL/hr per 10kg 80kg, children 3 x TBSA x weight); isotonic solution preferred; over-resuscitation 250 mL/kg in first 24 hours increases ARDS and compartment syndrome risk; albumin infusion if hourly rate 1500 mL/hr or projected 24h volume approaches 250 mL/kg; clinical signs of inhalation injury: progressive voice changes, soot, hypoxia, shortness of breath; USAISR Burn Center definitive care; early ambulation critical; cellulitis most common infectious complication in pediatric burns). Military working dogs (handler controls dog; normal temp 101-103°F; pulse 60-80 bpm; BP 120/80; external jugular vein for fluids; tracheostomy transverse incision through annular ligament; endotracheal tube in esophagus if feel 2 tubes; CPR 100 compressions per minute; crystalloid bolus approximate from weight in pounds add a zero;

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EFMB WRITTEN TEST STUDY GUIDE

ACTUAL EXAM QUESTIONS AND CORRECT
VERIFIED ANSWERS LATEST EXAM UPDATE


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



A FAST examination is performed with a portable hand-held machine most
commonly using a standard 3-7 MHz curved array __________ probe. - ✔✔✔
Correct Answer > Ultra Sound (US)



The standard FAST examination is focused on evaluating for the presence of
__________ in certain areas of the body. - ✔✔✔ Correct Answer > Free
Intraperitoneal Fluid



When performing a FAST examination on a patient, you inspect the right upper
quadrant. You are inspecting between which two

(2) organs? - ✔✔✔ Correct 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? - ✔✔✔ Correct Answer > Spleen & Kidney




Page 1 of 86

,An 18g __________ IV is typically desired for Computed

Tomography IV access. - ✔✔✔ Correct Answer > antecubital



T/F: The goal of Computed Tomography (CT) contrast injection is to provide
concurrent solid organ enhancement, arterial enhancement, and pulmonary
arterial. - ✔✔✔ Correct 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. - ✔✔✔ Correct Answer >
FALSE. Utilize a scanning protocol based on the pediatric settings to include
the doses of and rates of contrast administration.



T/F: All patients evacuated through casualty evacuation should have images
sent electronically ahead of time as well as have a

CD created to send with the patient as a backup. - ✔✔✔ Correct

Answer > TRUE



T/F: Magnetic Resonance Imaging (MRI) is widely used in theater, as its utility
in the acute management of combat trauma was extensively established during
Operation Enduring Freedom. -

✔✔✔ Correct Answer > FALSE. While Magnetic Resonance Imaging (MRI)
has been deployed to theater in the past, its utility in the acute management of
combat trauma has not been established.

Page 2 of 86

,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) __________. - ✔✔✔ Correct 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. - ✔✔✔ Correct 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? - ✔✔✔ Correct Answer > Role 3



What is the lowest level of care equipped with a portable x-ray machine? -
✔✔✔ Correct Answer > Role 2



Members of the trauma team should have __________ aprons and thyroid
shields available near the trauma bay for radiation safety. - ✔✔✔ Correct
Answer > lead




Page 3 of 86

, 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. - ✔✔✔

Correct 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
__________. - ✔✔✔ Correct Answer > Focused Abdominal Sonographic
Assessment for Trauma



FAST in combat trauma has a sensitivity of only 56% and and specificity of
__________. - ✔✔✔ Correct Answer > 98%



T/F: The FAST exam remains the most sensitive test for hollow viscus injury
and mesenteric injury. - ✔✔✔ Correct 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. - ✔✔✔ Correct
Answer > TRUE


Page 4 of 86

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