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 ONLY COPYRIGHT © 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
FOR STUDY PURPOSES ONLY COPYRIGHT © 2025 ALL RIGHTS RESERVED 2
, Contraindications to adenosine - ANSWER✔✔-Asthma --> can cause bronchospasm
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
FOR STUDY PURPOSES ONLY COPYRIGHT © 2025 ALL RIGHTS RESERVED 3
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 ONLY COPYRIGHT © 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
FOR STUDY PURPOSES ONLY COPYRIGHT © 2025 ALL RIGHTS RESERVED 2
, Contraindications to adenosine - ANSWER✔✔-Asthma --> can cause bronchospasm
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
FOR STUDY PURPOSES ONLY COPYRIGHT © 2025 ALL RIGHTS RESERVED 3
