Pain & Critical Care
Which factor is the most significant determinant of the "damping coefficient" in an invasive arterial line system?
A. The length and compliance of the tubing.
B. The patient's heart rate.
C. The diameter of the radial artery.
D. The concentration of Heparin in the flush.
A. The length and compliance of the tubing.
What specific type of surgery was performed on Gilbert Abbott during the first public demonstration of ether?
A. Amputation
B. Dental extraction
C. Removal of a neck tumor
D. Appendectomy
C. Removal of a neck tumor
Which anesthetic agent is most likely to preserve cerebral autoregulation while significantly reducing the cerebral metabolic rate of oxygen?
A. Sevoflurane at 2.0 MAC
B. Nitrous Oxide
C. Propofol
D. Ketamine
C. Propofol
What is the primary physiological goal of "Permissive Hypercapnia" in ARDS management?
A. To improve oxygen dissociation
B. To prevent barotrauma and volutrauma
C. To increase cardiac output
D. To sedate the patient naturally
B. To prevent barotrauma and volutrauma
Before Morton's public demonstration, this physician used ether for surgery in 1842 but did not publish his findings until years later.
A. Crawford Long
B. James Simpson
C. Joseph Lister
D. Benjamin Rush
A. Crawford Long
What is the primary mechanism of coagulopathy in a patient with Amniotic Fluid Embolism (AFE)?
A. Dilutional coagulopathy from massive fluid resuscitation
B. Consumptive coagulopathy (DIC) triggered by tissue factor
C. Hepatic failure and loss of clotting factor synthesis
D. Primary fibrinolysis only
B. Consumptive coagulopathy (DIC) triggered by tissue factor
While THRIVE (Transnasal Humidified Rapid-Insufflation Ventilatory Exchange) extends safe apnea, continuous monitoring shows unbuffered PaCO2 accumulation rises linearly at approximately this rate.
A. 0.5 mmHg per minute
B. 1 mmHg per minute
C. 3 mmHg per minute
D. 6 mmHg per minute
C. 3 mmHg per minute
In what year Macintosh blade was introduced?
A. 1943
B. 1920
C. 1941
D. 1935
A. 1943
In the context of the "Bohr Effect," an increase in PaCO2 and a decrease in pH causes:
A. A left shift of the Oxyhemoglobin dissociation curve
B. A right shift of the Oxyhemoglobin dissociation curve
C. No change in oxygen affinity
D. Inhibition of 2,3-DPG production
B. A right shift of the Oxyhemoglobin dissociation curve (easier unloading)
Generating significant attention in multi-center clinical trials, Suzetrigine eliminates opioid requirements by acting at peripheral damage points.
A. Central alpha-2 delta ligands
B. Selective Sodium v1.8 inhibitors
C. Synthetic enkephalinase inhibitors
D. G-protein coupled kappa-opioid agonists
B. Selective Sodium v1.8 inhibitors
In 1942, Griffith and Johnson revolutionized anesthesia by being the first to use which substance clinically?
A. Thiopental
B. Halothane
C. Curare
D. Cyclopropane
C. Curare
regarding autonomic hyperreflexia in patients with spinal cord injury, Up to 85% of patients with transections above what level will exhibit it under general anesthesia
A. T4
B. T5
C. T6
D. T7
C. T6
The 2026 ASA Practice Guidelines now issue a "strong recommendation" for utilizing this specific category of blocks in children undergoing open cardiac surgeries.
A. Continuous thoracic epidural catheter placement
B. High thoracic paravertebral nerve injections
C. Fascial plane blocks
D. Selective intercostal nerve destruction therapies
C. Fascial plane blocks
The term "Anesthesia" (from the Greek for "without sensation") was famously suggested to William Morton in a letter by which prominent American physician and poet?
A. Oliver Wendell Holmes Sr.
B. Crawford Long
C. Benjamin Rush
D. Silas Weir Mitchell
A. Oliver Wendell Holmes Sr.
Which anesthetic agent is associated with the highest level of carbon monoxide formation when interacting with desiccated CO2 absorbents?
A. Halothane
B. Isoflurane
C. Desflurane
D. Sevoflurane
C. Desflurane