Orion's CFRN/CTRN Exam Prep
2025/2026 Exam Questions and Correct
Answers | New Update
BURNS - Consensus formula - 🧠ANSWER ✔✔(2-4 mL Ringers Lactate) x
(weight in kg) x (% TBSA) = mLs in first 24 hours.
Give half of this total in the first 8 hours post burn.
BURN PEARL: Adults use 2 mL: Pediatrics use 3 mL: Electrical injuries use 4mL.
Do not give dextrose solutions (except for maintenance fluids in children) —it may
cause an osmotic diuresis and confuse adequacy of resuscitation assessment.
BURNS - The Parkland formula - 🧠ANSWER ✔✔4ml x TBSA (%) x body weight
(kg) = Total fluid requirement in 24 hours
50% given in first eight hours
,50% given in next 16 hours.
- Adequate urine output for adults is 30 mL/hr and children <30kg should be 1-
1.5ml/kg/h.
BURNS - Rule of Nines - 🧠ANSWER ✔✔Adult - Head: 9%
Adult - Front 18%
Adult - Back 18%
Adult - Arm 9%
Adult - Leg 18%
Adult - Groin 1%
Child - Head 18%
Child - Front 18%
Child - Back 18%
Child - Arm 9%
Child - Leg 14%
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
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STATEMENT. ALL RIGHTS RESERVED
, Child - Groin 1%
https://plasticsurgerykey.com/case-49-acute-burn-injury/
Maternal-fetal triage index - 🧠ANSWER ✔✔- STAT/Priority 1: Need for acute,
life-saving interventions, including, the presence of prolapsed cord, signs of
imminent birth including visible presenting fetal part or maternal bearing down
with contractions, maternal hemorrhage, cardiac compromise or severe respiratory
distress, maternal seizures, or the following abnormal vital signs: inability to detect
the fetal heart rate or a fetal heart rate less than 100 beats per minute for greater
than 1 minute; a maternal heart rate less than 40 or greater than 130, a systolic
blood pressure ≥ 160 or a diastolic ≥ 110, maternal apnea, or an oxygen saturation
< 93%.
- Urgent/Priority 2: Severe pain unrelated to contractions, alterations in maternal
mental status, suicidal or homicidal patients, active vaginal bleeding, or difficulty
bleeding; other inclusions are patients who are ≥ 34 weeks gestation and who are
either experiencing regular contractions or leaking of amniotic fluid and who: are
HIV+, multiple gestation pregnancy, have placenta previa, have a fetus in breech
presentation, etc. The following abnormal vital signs are considered inclusion in
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
3
STATEMENT. ALL RIGHTS RESERVED
2025/2026 Exam Questions and Correct
Answers | New Update
BURNS - Consensus formula - 🧠ANSWER ✔✔(2-4 mL Ringers Lactate) x
(weight in kg) x (% TBSA) = mLs in first 24 hours.
Give half of this total in the first 8 hours post burn.
BURN PEARL: Adults use 2 mL: Pediatrics use 3 mL: Electrical injuries use 4mL.
Do not give dextrose solutions (except for maintenance fluids in children) —it may
cause an osmotic diuresis and confuse adequacy of resuscitation assessment.
BURNS - The Parkland formula - 🧠ANSWER ✔✔4ml x TBSA (%) x body weight
(kg) = Total fluid requirement in 24 hours
50% given in first eight hours
,50% given in next 16 hours.
- Adequate urine output for adults is 30 mL/hr and children <30kg should be 1-
1.5ml/kg/h.
BURNS - Rule of Nines - 🧠ANSWER ✔✔Adult - Head: 9%
Adult - Front 18%
Adult - Back 18%
Adult - Arm 9%
Adult - Leg 18%
Adult - Groin 1%
Child - Head 18%
Child - Front 18%
Child - Back 18%
Child - Arm 9%
Child - Leg 14%
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
2
STATEMENT. ALL RIGHTS RESERVED
, Child - Groin 1%
https://plasticsurgerykey.com/case-49-acute-burn-injury/
Maternal-fetal triage index - 🧠ANSWER ✔✔- STAT/Priority 1: Need for acute,
life-saving interventions, including, the presence of prolapsed cord, signs of
imminent birth including visible presenting fetal part or maternal bearing down
with contractions, maternal hemorrhage, cardiac compromise or severe respiratory
distress, maternal seizures, or the following abnormal vital signs: inability to detect
the fetal heart rate or a fetal heart rate less than 100 beats per minute for greater
than 1 minute; a maternal heart rate less than 40 or greater than 130, a systolic
blood pressure ≥ 160 or a diastolic ≥ 110, maternal apnea, or an oxygen saturation
< 93%.
- Urgent/Priority 2: Severe pain unrelated to contractions, alterations in maternal
mental status, suicidal or homicidal patients, active vaginal bleeding, or difficulty
bleeding; other inclusions are patients who are ≥ 34 weeks gestation and who are
either experiencing regular contractions or leaking of amniotic fluid and who: are
HIV+, multiple gestation pregnancy, have placenta previa, have a fetus in breech
presentation, etc. The following abnormal vital signs are considered inclusion in
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
3
STATEMENT. ALL RIGHTS RESERVED
