CRNA BOARDS EXAM 2025
QUESTIONS AND ANSWERS
Drugs that interfere with SSEP monitoring - ....ANSWER ...-N2O, Volatile agents,
propofol, barbs, benzos
Drugs that do NOT interfere with SSEP monitotrng - ....ANSWER ...-ketamine,
dexmedetomidine, etomidate, opioids, droperidol
As temperature in the blood increases what happens to solubility? -
....ANSWER ...-increases
Allergic reactions are most common with which kind or LA - ....ANSWER ...-Ester
cAMP??? - ....ANSWER ...-
Increased IP3 is associated with which receprtor agonism? - ....ANSWER ...-alpha-
1 and V-1
how do opioids affect adenyl cyclase? - ....ANSWER ...-inhibit and block coversion
of ATP to cAMP
Physostigmine - ....ANSWER ...-Tertiary amine anticholinesterase
tx: anticholinergic crisis
15-60 mcg/kg q 1-2h
....FOR STUDY PURPOSES...©️2025 ALL RIGHTS RESERVED... 1
,Cocaine - ....ANSWER ...-- ester
- Only one with vasoconstrictive properties
- prevents NE uptake
- MAX DOSE: 1.5-3.0 mg/kg or 200 mg
-Do not give b-blocker first for OD
-avoid with TCA's MAOIs, sympatomimetic
Which drug has anticholinergic properties and can be used to treat extrapyramidal
effects of haldol? - ....ANSWER ...-diphenhydramine
Which is the only narcotic to prolong QT interval and can precipitate torsades and v-tach
- ....ANSWER ...-methadone:
Enatiomer: blocks 5ht and NE uptake
Which coronary artery supplies leads II, III, aVF - ....ANSWER ...-RCA: RA, RV,
SA & AV nodes, inferior LV
Which coronary artery supplies V3-V5 - ....ANSWER ...-LAD: anterolateral LV
which coronary artery supplies I and aVL - ....ANSWER ...-Cx
NIRS - ....ANSWER ...-Near infrared spectroscopy: assesses cerebral venous O2
sat --> determines O2 extraction
Contraindications to adenosine - ....ANSWER ...-Asthma --> can cause
bronchospasm
....FOR STUDY PURPOSES...©️2025 ALL RIGHTS RESERVED... 2
, inc K+ conductance and decreases phase 4 (sets HR)
used for SVT and stress testing
Piston driven vents - ....ANSWER ...-- Have PEEP and NEEP pressure relief
valves: valve will open after PEEP > 75 and NEEP <-8
- electric powered: will not use tank O2 if pipeline runs out
- uses fresh gas decoupling (FGF, I:E, R/R have no effect on TV)
which type of vent adds extrinsic peep? - ....ANSWER ...-gas-driven bellow: Adds
2-3 cm of PEEP
End products of soda lime reaction - ....ANSWER ...-sodium hydroxide (NaOH)
calcium carbonate (CaCO3)
Brugada syndrome - ....ANSWER ...-common in asian males
RBBB and ST elevation in V1-V3
Long QT syndrome - ....ANSWER ...-most common cardiac ion channelopathy
QT > 440 msec
can lead to torsades
WPW - ....ANSWER ...-pre-excitation syndrome
....FOR STUDY PURPOSES...©️2025 ALL RIGHTS RESERVED... 3
QUESTIONS AND ANSWERS
Drugs that interfere with SSEP monitoring - ....ANSWER ...-N2O, Volatile agents,
propofol, barbs, benzos
Drugs that do NOT interfere with SSEP monitotrng - ....ANSWER ...-ketamine,
dexmedetomidine, etomidate, opioids, droperidol
As temperature in the blood increases what happens to solubility? -
....ANSWER ...-increases
Allergic reactions are most common with which kind or LA - ....ANSWER ...-Ester
cAMP??? - ....ANSWER ...-
Increased IP3 is associated with which receprtor agonism? - ....ANSWER ...-alpha-
1 and V-1
how do opioids affect adenyl cyclase? - ....ANSWER ...-inhibit and block coversion
of ATP to cAMP
Physostigmine - ....ANSWER ...-Tertiary amine anticholinesterase
tx: anticholinergic crisis
15-60 mcg/kg q 1-2h
....FOR STUDY PURPOSES...©️2025 ALL RIGHTS RESERVED... 1
,Cocaine - ....ANSWER ...-- ester
- Only one with vasoconstrictive properties
- prevents NE uptake
- MAX DOSE: 1.5-3.0 mg/kg or 200 mg
-Do not give b-blocker first for OD
-avoid with TCA's MAOIs, sympatomimetic
Which drug has anticholinergic properties and can be used to treat extrapyramidal
effects of haldol? - ....ANSWER ...-diphenhydramine
Which is the only narcotic to prolong QT interval and can precipitate torsades and v-tach
- ....ANSWER ...-methadone:
Enatiomer: blocks 5ht and NE uptake
Which coronary artery supplies leads II, III, aVF - ....ANSWER ...-RCA: RA, RV,
SA & AV nodes, inferior LV
Which coronary artery supplies V3-V5 - ....ANSWER ...-LAD: anterolateral LV
which coronary artery supplies I and aVL - ....ANSWER ...-Cx
NIRS - ....ANSWER ...-Near infrared spectroscopy: assesses cerebral venous O2
sat --> determines O2 extraction
Contraindications to adenosine - ....ANSWER ...-Asthma --> can cause
bronchospasm
....FOR STUDY PURPOSES...©️2025 ALL RIGHTS RESERVED... 2
, inc K+ conductance and decreases phase 4 (sets HR)
used for SVT and stress testing
Piston driven vents - ....ANSWER ...-- Have PEEP and NEEP pressure relief
valves: valve will open after PEEP > 75 and NEEP <-8
- electric powered: will not use tank O2 if pipeline runs out
- uses fresh gas decoupling (FGF, I:E, R/R have no effect on TV)
which type of vent adds extrinsic peep? - ....ANSWER ...-gas-driven bellow: Adds
2-3 cm of PEEP
End products of soda lime reaction - ....ANSWER ...-sodium hydroxide (NaOH)
calcium carbonate (CaCO3)
Brugada syndrome - ....ANSWER ...-common in asian males
RBBB and ST elevation in V1-V3
Long QT syndrome - ....ANSWER ...-most common cardiac ion channelopathy
QT > 440 msec
can lead to torsades
WPW - ....ANSWER ...-pre-excitation syndrome
....FOR STUDY PURPOSES...©️2025 ALL RIGHTS RESERVED... 3
