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CFRN Exam Prep | 180 Quizzes with 100% Verified Answers
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CFRN Exam Prep | 180 Quizzes with 100% Verified Answers
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CFRN Exam Prep | 180 Quizzes with 100%Verified Answers
What needs to be monitored when the patient is receiving nitrates? -
✔✔Methemoglobinemia levels. Normal is 1-2%. Discontinue nitrates when level is > 10%.
Methylene blue if symptomatic and > 30%.
P plat upper limit? - ✔✔30 mmHg
P plat measurement is the best indication of what? - ✔✔Alveolar health
When P plat and PIP are both elevated, where is your problem likely to be? - ✔✔Alveolar
level
Desired alveolar minute ventilation? - ✔✔120mL/kg/min
Dead space calculation? - ✔✔33% or approximately 1mL/IBW
Gay Lussac's Law - ✔✔As temperature increases, pressure increases.
Boyle's Law - ✔✔Pressure increases as volume decreases.
Charles' Law - ✔✔Volume increases as temperature increases.
Graham's Law - ✔✔Gasses diffuse from an area of higher concentration (pressure) to areas
of lower concentration (pressure).
,Henry's Law - ✔✔The amount of gas in solution is directly proportional to the pressure of the
gas over the solution.
Dalton's Law - ✔✔Total pressure equals the sum of all individual partial pressures.
Formula for potential PO2 in healthy lungs? - ✔✔FiO2 x5
Withhold meds until body temp reaches what? - ✔✔30 C
Malignant hyperthermia is caused by what? - ✔✔Massive release of calcium
Fresh water drowning causes what? - ✔✔Surfactant wipe out and lung collapse
Salt water drowning causes what? - ✔✔Hyperosmolar state and third spacing of blood and
plasma in pulmonary spaces
Vent settings for salt water drowning? - ✔✔Low Vt, high f, high PEEP
Flight suit should have how much space for proper insulation and fit? - ✔✔1/4"
What are CAMTS VFR local/day flying minimums? - ✔✔800' ceiling, 2 miles visibility
Rotor wing pilots are required to have what? - ✔✔100 hrs night flight, 1000 hrs as PIC, 2000
hrs in rotorcraft
xx - ✔✔xx
, Kehr's Sign - ✔✔Test for ruptured spleen. Pain in left shoulder when lying down with legs
elevated.
Grey-Turner's Sign - ✔✔Sign of retroperitoneal hemorrhage. Bruising noted in bilateral
flanks.
Trousseau's Sign - ✔✔Tests for hypocalcemia. Cut off blood supply in arm for 3 minutes, and
patient's hand will show tetany.
Chvostek's Sign - ✔✔Tests for hypocalcemia. Tap on masseter and will have facial muscle
contractions.
McBurney's point - ✔✔Tests for appendicitis. Deep pain 1/3 distance from iliac crest to
umbilicus.
Cullen's Sign - ✔✔Tests for pancreatitis. Bluish discoloration around umbilicus.
Brudzinski's Sign - ✔✔Tests for meningitis. Head flexion causes hips and knees to flex
involuntarily.
Hypermagnesium state causes what? - ✔✔Decreased DTRs and hypotension
Hypokalemia causes what? - ✔✔Inverted T waves, ST depression, prominent U waves
Hyperkalemia causes what? - ✔✔Peaked T waves and widening QRS
Which two electrolytes have an inverse relationship? - ✔✔Calcium and Phosphorus
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