EFMB Field Training & Endurance 3 — Questions and Answers
Question 1: During a night land navigation course, a soldier uses a lensatic compass. What technique ensures accurate azimuth maintenance while moving through dense terrain?
- Shoot an azimuth every 500 meters
- Use terrain association only
- Identify a visible landmark on the azimuth before moving (Correct answer)
- Travel in a straight line regardless of obstacles
Correct answer: Identify a visible landmark on the azimuth before moving
Identifying an intermediate landmark (aiming off) on the desired azimuth before moving prevents deviation when navigating around obstacles.
Question 2: What is the primary danger of consuming alcohol before or during cold-weather field operations?
- Increased risk of dehydration
- Impaired judgment only
- Vasodilation causing accelerated heat loss despite feeling warm (Correct answer)
- Increased risk of altitude sickness
Correct answer: Vasodilation causing accelerated heat loss despite feeling warm
Alcohol causes peripheral vasodilation, increasing heat loss from the body while creating a false sensation of warmth, accelerating hypothermia.
Question 3: A soldier has been in cold, wet conditions for 48 hours and presents with painful, swollen feet with blistering. The skin is red and inflamed. This is most consistent with:
- Frostbite
- Frostnip
- Trench foot (Correct answer)
- Cellulitis
Correct answer: Trench foot
Prolonged exposure to cold and wet conditions causing painful, blistered, swollen feet is classic trench foot (immersion foot).
Question 4: During EFMB field training events, candidates must demonstrate proficiency in treating casualties under simulated combat conditions. What principle governs the sequence of care at the point of injury?
- Treat the most seriously wounded first regardless of location
- Return fire and suppress the threat before rendering care (Correct answer)
- Immediately evacuate all casualties to cover
- Establish an IV line before moving the casualty
Correct answer: Return fire and suppress the threat before rendering care
Tactical Combat Casualty Care (TCCC) Phase 1 (Care Under Fire) requires returning fire and suppressing the threat before rendering care.
Question 5: What minimum urine output color indicates adequate hydration during field operations?
- Clear/colorless
- Pale yellow (lemonade color) (Correct answer)
- Dark yellow (apple juice color)
- Orange
Correct answer: Pale yellow (lemonade color)
Pale yellow urine (lemonade color) indicates adequate hydration; clear urine may indicate overhydration while dark urine signals dehydration.
Question 6: During sustained field operations, sleep deprivation becomes a casualty risk factor. After how many hours without sleep does performance degradation become operationally significant?
- 12 hours
- 18 hours
- 24 hours (Correct answer)
- 36 hours
Correct answer: 24 hours
Research shows significant cognitive and physical performance degradation occurs after approximately 24 hours without sleep.
Question 7: A unit is conducting operations in mountainous terrain above 8,000 feet. What condition should the medic monitor for in soldiers who ascend rapidly?
- Heat exhaustion
- Acute Mountain Sickness (AMS) (Correct answer)
- Trench foot
- Hyponatremia
Correct answer: Acute Mountain Sickness (AMS)
Rapid ascent above 8,000 feet can cause Acute Mountain Sickness (AMS) due to reduced oxygen partial pressure.
EFMB Field Training & Endurance 3
During a night land navigation course, a soldier uses a lensatic compass.
What technique ensures accurate azimuth maintenance while moving through dense terrain?