Questions and Answers
What does Extra-Labeled drug use refer to?
What increases the risk of anesthetic complications?
Dehydration
What does anemia decrease in the body?
Oxygen-carrying capacity of the blood
Respiratory or cardiovascular system abnormalities increase the risk of anesthetic complications.
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What is the Body Condition Score?
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How are lethargic patients defined?
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What defines an obtunded patient?
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What is a stuporous patient?
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What does it mean if a patient is comatose?
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What does PS stand for?
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What is PS1 classification?
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What does PS2 classification indicate?
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What is the risk level for PS3?
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What does PS4 classification entail?
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What constitutes PS5 classification?
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Dogs and cats should withhold feed for ___ hours and water for ___ hours.
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Horses should withhold feed for ___ hours and water for ___ hours.
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Cattle should withhold feed for ___ hours and water for ___ hours.
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Small ruminants should withhold feed for ___ hours and water for ___ hours.
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Study Notes
Anesthetic Terminology and Patient Assessment
- Extra-labeled drug use involves anesthetic drugs not FDA-approved for specific purposes; commonly encountered in veterinary settings.
- Dehydration raises anesthetic risks, leading to hypotension, poor tissue perfusion, and potential kidney damage.
- Anemia reduces blood's oxygen-carrying capacity, making patients susceptible to hypoxemia.
- Abnormalities in respiratory or cardiovascular systems heighten anesthetic risks and increase mortality chances.
- Body condition score serves as a numerical assessment of the patient's weight, aiding in anesthetic risk evaluation.
Patient Consciousness Levels
- Lethargic patients exhibit a mildly decreased level of consciousness (LOC) and can be easily aroused.
- Obtunded patients display more significant depression of consciousness and cannot be fully aroused.
- Stuporous patients are in a sleep-like state and can only be awakened through painful stimuli.
- Comatose patients are unresponsive to all stimuli, including pain, and cannot be aroused.
Physical Status Classification (PS)
- PS is a system classifying patients’ anesthetic risks into five categories:
- PS1: Normal healthy patients, minimal risk for elective procedures.
- PS2: Low-risk patients with mild systemic diseases; includes neonates, geriatrics, and those with mild dehydration.
- PS3: Moderate-risk patients with severe systemic diseases; conditions like anemia and compensated organ disease are present.
- PS4: High-risk patients facing life-threatening severe systemic diseases, such as ruptured bladders or internal hemorrhages.
- PS5: Extreme-risk, moribund patients unlikely to survive without surgical intervention; includes severe head trauma and end-stage organ failure.
Pre-Anesthesia Fasting Guidelines
- For dogs and cats, withhold feed for 8-12 hours and water for 2-4 hours before anesthesia.
- Horses should have feed withheld for 8-12 hours and water for 0-2 hours.
- Cattle require a longer fasting period, withholding feed for 24-48 hours and water for 8-12 hours.
- Small ruminants need to withhold feed for 12-18 hours and water for 8-12 hours prior to anesthesia.
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Description
Test your knowledge on key terms related to veterinary anesthesia. This quiz covers important concepts such as extra-labeled drug use, dehydration, and anemia. See how well you understand the implications of these terms in a clinical setting.