Mixed Deck — All CAA Topics Flashcards

A 68-year-old patient with known GERD is scheduled for a laparoscopic cholecystectomy. Which preoperative medication is commonly given to reduce aspiration risk?

Answer: Metoclopramide and sodium citrate

Metoclopramide accelerates gastric emptying and increases lower esophageal sphincter tone, while sodium citrate neutralizes gastric acid to reduce aspiration injury risk.

What is the primary goal of a preoperative beta-blocker continuation strategy in a chronic beta-blocker user presenting for major noncardiac surgery?

Answer: Prevent perioperative myocardial ischemia and arrhythmias

Abrupt beta-blocker withdrawal increases catecholamine surges, raising the risk of perioperative myocardial ischemia and dangerous arrhythmias in chronic users.

Which tool or methodology is most appropriate for analyzing anesthesia assistant principles outcomes?

Answer: Maintaining professional boundaries while building collaborative relationships

Maintaining professional boundaries while building collaborative relationships is the correct approach because effective anesthesia assistant principles in the anesthesia assistant field requires adherence to professional standards, evidence-based practices, and systematic methodology. This approach ensures consistent, high-quality outcomes while maintaining professional accountability.

Which FDA-mandated checkout step requires occluding the patient port and confirming no pressure loss on the breathing system?

Answer: Low-pressure system leak test

The low-pressure system leak test checks the integrity of the circuit from the flowmeters to the common gas outlet by occluding the patient port and squeezing the reservoir bag.

Which type of vaporizer is classified as a 'variable bypass' vaporizer?

Answer: Datex-Ohmeda Tec 7

The Datex-Ohmeda Tec 7 is a variable bypass vaporizer where a portion of fresh gas flow is diverted through the vaporizing chamber.

For a spinal anesthetic, hyperbaric bupivacaine is prepared by mixing bupivacaine with:

Answer: Dextrose 8%

Hyperbaric bupivacaine is mixed with 8% dextrose, making it denser than CSF so it spreads dependent to patient positioning (e.g., toward the sacrum in a sitting patient).

What is the most common mistake professionals make when implementing anesthesia assistant emergency response strategies?

Answer: Developing contingency plans for high-probability risk scenarios

Developing contingency plans for high-probability risk scenarios is the correct approach because effective anesthesia assistant emergency response in the anesthesia assistant field requires adherence to professional standards, evidence-based practices, and systematic methodology. This approach ensures consistent, high-quality outcomes while maintaining professional accountability.

The test dose for an epidural catheter contains epinephrine 15 mcg to detect:

Answer: Intravascular catheter placement

Intravascular injection of epinephrine 15 mcg causes a transient heart rate increase of ≥20 bpm within 1 minute, indicating inadvertent IV catheter placement.

Preoxygenation prior to induction of anesthesia is performed to:

Answer: Denitrogenate the functional residual capacity to extend the safe apnea time

Breathing 100% oxygen for 3–5 minutes replaces nitrogen in the FRC with oxygen, creating an oxygen reservoir that extends the safe apnea period during intubation.

Why is capnography essential in patient monitoring during anesthesia?

Answer: To monitor end-tidal CO2 for ventilation assessment

Capnography provides real-time monitoring of end-tidal CO2 levels, ensuring adequate ventilation and early detection of respiratory issues.

Intraoperatively, the surgeon requests controlled hypotension to reduce blood loss during a total hip arthroplasty. What is the general target mean arterial pressure (MAP) during deliberate hypotension in a healthy adult?

Answer: 50–65 mmHg

A MAP of 50–65 mmHg is typically targeted during deliberate hypotension in healthy adults, balancing reduced surgical bleeding against adequate perfusion to vital organs.

A patient in the PACU has respiratory rate of 6 breaths/min, shallow respirations, miosis, and somnolence following spinal surgery with intraoperative morphine. What is the first-line treatment?

Answer: Naloxone 0.04–0.4 mg IV titrated

The clinical picture represents opioid-induced respiratory depression; titrated naloxone reverses mu-opioid receptor effects while minimizing acute pain and hemodynamic rebound.

What is the most common mistake professionals make when implementing anesthesia assistant principles strategies?

Answer: Developing contingency plans for high-probability risk scenarios

Developing contingency plans for high-probability risk scenarios is the correct approach because effective anesthesia assistant principles in the anesthesia assistant field requires adherence to professional standards, evidence-based practices, and systematic methodology. This approach ensures consistent, high-quality outcomes while maintaining professional accountability.

When monitoring a patient in the prone position during spine surgery, which complication specific to this position must the anesthesia assistant continuously monitor for?

Answer: Pressure on the eyes causing ischemic optic neuropathy or corneal abrasion

Prone positioning increases intraocular pressure and can compress the eyes against headrests, causing corneal abrasion or ischemic optic neuropathy, a cause of postoperative blindness.

Which vital sign is most critical in detecting early signs of anesthesia-related complications?

Answer: Blood pressure

Blood pressure monitoring is crucial as significant changes can indicate hemodynamic instability due to anesthesia.

Which scenario would require a anesthesia assistant professional to escalate a anesthesia assistant emergency response concern?

Answer: Creating feedback mechanisms that encourage continuous improvement

Creating feedback mechanisms that encourage continuous improvement is the correct approach because effective anesthesia assistant emergency response in the anesthesia assistant field requires adherence to professional standards, evidence-based practices, and systematic methodology. This approach ensures consistent, high-quality outcomes while maintaining professional accountability.

A patient scheduled for elective surgery reports taking warfarin daily. What is the most appropriate initial action for the anesthesia team?

Answer: Check the patient's INR and notify the surgical team

Checking the INR determines the degree of anticoagulation, which guides bridging therapy decisions made collaboratively with the surgeon.

Transversus abdominis plane (TAP) blocks provide analgesia primarily to which anatomical region?

Answer: Anterior abdominal wall from T6 to L1 dermatomes

TAP blocks deposit local anesthetic between the internal oblique and transversus abdominis muscle layers, blocking the thoracolumbar nerves that supply the anterior abdominal wall (T6–L1).

Which dermatome level of spinal block is needed for a Cesarean delivery under neuraxial anesthesia?

Answer: T4

A T4 sensory level (nipple line) is required for Cesarean section to cover peritoneal traction and uterine manipulation without patient discomfort.

Which parameter does a spirometry loop on the anesthesia ventilator monitor display?

Answer: Flow–volume loop

A spirometry (flow–volume) loop plots flow against tidal volume, helping detect bronchospasm, circuit leaks, and patient–ventilator dyssynchrony.