CST Anesthesia & Surgical Positioning 1 — Questions and Answers
Question 1: Which type of anesthesia blocks nerve transmission in a specific region of the body without causing loss of consciousness?
- General anesthesia
- Regional anesthesia (Correct answer)
- Monitored anesthesia care
- Topical anesthesia
Correct answer: Regional anesthesia
Regional anesthesia blocks nerve impulses in a targeted area, allowing the patient to remain awake while the surgical site is numbed.
Question 2: Which dissociative anesthetic agent produces a trance-like state and profound analgesia while maintaining airway reflexes?
- Propofol
- Ketamine (Correct answer)
- Midazolam
- Etomidate
Correct answer: Ketamine
Ketamine is a dissociative anesthetic that provides analgesia and sedation while typically preserving airway reflexes and spontaneous breathing.
Question 3: What does an ASA Physical Status Classification of I indicate?
- Patient with mild systemic disease
- Patient with severe systemic disease
- A normal, healthy patient with no systemic disease (Correct answer)
- A moribund patient not expected to survive
Correct answer: A normal, healthy patient with no systemic disease
ASA I denotes a normal, healthy patient with no organic, physiologic, or psychiatric disturbance.
Question 4: Which monitoring device measures the depth of anesthesia by analyzing brain electrical activity?
- Pulse oximeter
- Bispectral Index (BIS) monitor (Correct answer)
- Capnograph
- Arterial line
Correct answer: Bispectral Index (BIS) monitor
The Bispectral Index (BIS) monitor processes EEG signals and produces a numerical value (0–100) that reflects anesthetic depth.
Question 5: Malignant hyperthermia is most commonly triggered by which combination of agents?
- Propofol and opioids
- Succinylcholine and volatile halogenated agents (Correct answer)
- Benzodiazepines and barbiturates
- Nitrous oxide and ketamine
Correct answer: Succinylcholine and volatile halogenated agents
Malignant hyperthermia is a pharmacogenetic disorder triggered by succinylcholine and volatile inhalation agents such as sevoflurane or desflurane in susceptible individuals.
Question 6: What is the first-line pharmacologic treatment for malignant hyperthermia?
- Epinephrine
- Dantrolene sodium (Correct answer)
- Atropine
- Naloxone
Correct answer: Dantrolene sodium
Dantrolene sodium inhibits calcium release from the sarcoplasmic reticulum, directly treating the hypermetabolic crisis of malignant hyperthermia.
Question 7: Which anesthetic technique involves injection of local anesthetic into the subarachnoid space to produce sensory and motor block?
- Epidural anesthesia
- Brachial plexus block
- Spinal (intrathecal) anesthesia (Correct answer)
- Intravenous regional anesthesia
Correct answer: Spinal (intrathecal) anesthesia
Spinal anesthesia delivers local anesthetic directly into the cerebrospinal fluid in the subarachnoid space, producing rapid and dense block.
CST Anesthesia & Surgical Positioning 1
Which type of anesthesia blocks nerve transmission in a specific region of the body without causing loss of consciousness?