ASA Physical Status Classification — MCQs

10 questions

A 63-year-old man presents for an elective laparoscopic cholecystectomy. He is obese, has angina at rest, and chronic obstructive pulmonary disease (COPD). Which of the following would be his American society of Anesthesiologists (ASA) physical status classification

According to American society of Anesthesiologists the physical status of a patient with severe incapacitating systemic disease that is a constant threat to life may be classified as:

In anesthesiology, mild systemic disease is classified under which ASA grade?

Which one of the following is not a component of THORACOSCORE?

A 62-year-old patient with uncontrolled hypertension resulting in a ruptured aortic aneurysm submitted to surgery belongs to ASA class-

Ambulatory patients after a disaster are categorized into what color of triage?

A 50 year old male is posted for elective laparoscopic cholecystectomy. No history of comorbidities. His surgery is scheduled at 2 PM on the day of surgery. Which of the following is against the ASA guidelines for preoperative fasting

Q8Medium

A six-year-old boy is scheduled for examination of the eye under anesthesia. The father informed that for the past six months the child has been developing progressive weakness of both legs. His elder sibling had died at the age of 14 years. Which drug would you definitely avoid during the anesthetic management?

Q9Medium

Which of the following best describes a patient classified as ASA -3?

Q10Easy

Why is glycopyrrolate used as pre-anesthetic medication?

ASA Physical Status Classification Indian Medical PG Practice Questions and MCQs

Question 1: A 63-year-old man presents for an elective laparoscopic cholecystectomy. He is obese, has angina at rest, and chronic obstructive pulmonary disease (COPD). Which of the following would be his American society of Anesthesiologists (ASA) physical status classification

A. ASA II
B. ASA I
C. ASA IV
D. ASA III (Correct Answer)

Explanation: ***ASA III*** - This patient has **severe systemic disease** (angina at rest, COPD, obesity) that limits activity but is not incapacitating, aligning with the criteria for **ASA III**. - **Angina at rest** and **chronic obstructive pulmonary disease (COPD)** are significant comorbidities that place the patient in this category. *ASA II* - **ASA II** is defined by **mild systemic disease** that does not limit activity. - The patient's conditions such as **angina at rest** and **COPD** are more severe than what would be considered mild. *ASA I* - **ASA I** is reserved for a **normal, healthy patient** with no systemic disease. - This patient has multiple significant systemic diseases, unequivocally ruling out ASA I. *ASA IV* - **ASA IV** describes a patient with **severe systemic disease** that is a constant threat to life. - While critical, the patient's conditions (angina at rest, COPD) are stabilised enough for an **elective procedure** and are not an immediate, constant threat to life.

Question 2: According to American society of Anesthesiologists the physical status of a patient with severe incapacitating systemic disease that is a constant threat to life may be classified as:

A. ASA 1
B. ASA 3
C. ASA 2
D. ASA 4 (Correct Answer)

Explanation: ***ASA 4*** - **ASA (American Society of Anesthesiologists) Physical Status Class 4** describes a patient with severe incapacitating systemic disease that is a constant threat to life. - This category indicates a **high risk of mortality**, even without surgery, due to the severity of their underlying health conditions. *ASA 1* - **ASA 1** describes a **normal, healthy patient** with no systemic disease or other underlying health conditions. - These patients have **minimal risk** associated with anesthesia. *ASA 3* - **ASA 3** describes a patient with **severe systemic disease** that is not incapacitating and not a constant threat to life. - Examples include **well-controlled diabetes or hypertension** with some associated complications. *ASA 2* - **ASA 2** describes a patient with **mild systemic disease** that has no functional limitations. - This category includes patients with **well-controlled chronic conditions** such as mild hypertension, well-controlled asthma, or type 2 diabetes without systemic complications.

Question 3: In anesthesiology, mild systemic disease is classified under which ASA grade?

A. 2 (Correct Answer)
B. 4
C. 3
D. 1

Explanation: 2 - ASA Grade 2 is defined as a patient with mild systemic disease that is well-controlled and does not limit daily activities. - Examples include a controlled hypertension, controlled type 2 diabetes without systemic complications, or a mild obesity (BMI 30-40). 4 - ASA Grade 4 indicates a patient with severe systemic disease that is a constant threat to life. - This includes conditions such as recent myocardial infarction, stroke, or severe valvular disease, which pose significant risks to patient safety during surgery. 3 - ASA Grade 3 describes a patient with severe systemic disease that limits activity but is not incapacitating. - Examples include poorly controlled hypertension or diabetes, stable angina, or moderate chronic obstructive pulmonary disease (COPD). 1 - ASA Grade 1 is assigned to a healthy patient without any systemic disease. - This classification implies no physiological, physical, or psychological disturbance, other than the condition requiring surgery.

Question 4: Which one of the following is not a component of THORACOSCORE?

A. Performance status
B. Complication of surgery (Correct Answer)
C. Priority of surgery
D. ASA grading

Explanation: ***Complication of surgery*** - THORACOSCORE is a **risk prediction model** for thoracic surgery used to estimate the *probability of mortality and significant morbidity*, but it does not account for the complications of surgery itself as a component. - The score uses **pre-operative patient characteristics** and co-morbidities to predict outcomes, not post-operative events. *Performance status* - **Performance status**, such as the **ECOG scale**, is a crucial component of THORACOSCORE, reflecting the patient's general health and functional capacity prior to surgery. - A lower performance status (indicating poorer functional ability) increases the predicted risk in THORACOSCORE. *Priority of surgery* - The **priority of surgery** (e.g., elective, urgent, emergency) is an important factor in THORACOSCORE, as emergency procedures generally carry a higher risk. - This variable helps to capture the urgency and associated physiological stress on the patient at the time of presentation for surgery. *ASA grading* - The **American Society of Anesthesiologists (ASA) physical status classification system** is a component of THORACOSCORE, assessing the patient's overall health status and anesthetic risk. - A higher ASA grade (indicating more severe systemic disease) contributes to a higher predicted risk in the THORACOSCORE model.

Question 5: A 62-year-old patient with uncontrolled hypertension resulting in a ruptured aortic aneurysm submitted to surgery belongs to ASA class-

A. VI
B. V
C. III
D. IV (Correct Answer)

Explanation: ***IV*** - An **ASA Class IV** patient has a **severe systemic disease** that is a constant threat to life. - An **uncontrolled ruptured aortic aneurysm** with uncontrolled hypertension clearly signifies a life-threatening condition, which is the hallmark of ASA Class IV. *VI* - **ASA Class VI** is reserved for a **brain-dead patient** whose organs are being removed for donor purposes. - This patient is alive and undergoing surgery, so Class VI does not apply. *V* - **ASA Class V** describes a **moribund patient** who is not expected to survive without the operation. - While a ruptured aortic aneurysm is severe, ASA V implies an even more immediate and profound risk of death, often associated with multiple organ failure or profound shock, which is not explicitly stated here. *III* - **ASA Class III** is defined by **severe systemic disease** that limits activity but is not incapacitating. - Uncontrolled hypertension and a ruptured aortic aneurysm represent a critical, life-threatening situation, classifying the patient beyond a simple Class III.

Question 6: Ambulatory patients after a disaster are categorized into what color of triage?

A. Red
B. Yellow
C. Green (Correct Answer)
D. Black

Explanation: ***Green*** - **Green tag** is for the walking wounded, meaning those with minor injuries who can move independently and do not require immediate medical attention. - These patients can often assist with **their own care** or aid others, and their treatment can be delayed. *Red* - **Red tag** patients have critical, life-threatening injuries that require immediate intervention to save life or limb. - This category includes conditions like **severe bleeding**, shock, or airway compromise. *Yellow* - **Yellow tag** is assigned to patients with serious injuries that are not immediately life-threatening but require definitive treatment within a few hours. - Examples include **stable fractures**, moderate burns, or significant but controlled bleeding. *Black* - **Black tag** indicates patients who are deceased or have injuries so severe that survival is unlikely even with maximal medical care. - Resources are diverted from these patients to those with a higher chance of survival, to **maximize overall saved lives**.

Question 7: A 50 year old male is posted for elective laparoscopic cholecystectomy. No history of comorbidities. His surgery is scheduled at 2 PM on the day of surgery. Which of the following is against the ASA guidelines for preoperative fasting

A. Water at 12:00 PM
B. Black coffee at 5:30 AM
C. Pancakes at 10:00 AM (Correct Answer)
D. A non-clear liquid (e.g., orange juice) at 7:30 AM

Explanation: **Pancakes at 10:00 AM** - According to ASA guidelines, the fasting period for solid food is typically **6-8 hours** before surgery. Eating pancakes, which are solid food, at 10:00 AM for a 2:00 PM surgery (4-hour interval) violates this guideline. - This short fasting period for solids increases the risk of **pulmonary aspiration** during induction of anesthesia. *Water at 12:00 PM* - Water is considered a clear liquid, and ASA guidelines typically allow clear liquids until **2 hours** before surgery. Drinking water at 12:00 PM for a 2:00 PM surgery is within these guidelines. - Rapid gastric emptying of clear liquids minimizes the risk of aspiration. *Black coffee at 5:30 AM* - Black coffee is considered a clear liquid, and it is consumed well within the **2-hour** fasting window for clear liquids before a 2:00 PM surgery. - The absence of milk or cream ensures it is treated as a clear liquid, which empties quickly from the stomach. *A non-clear liquid (e.g., orange juice) at 7:30 AM* - Non-clear liquids, such as orange juice, are treated similarly to light meals and generally require a fasting period of **6 hours** before surgery. Drinking orange juice at 7:30 AM for a 2:00 PM surgery (6.5-hour interval) is compliant with these guidelines. - The protein and pulp in non-clear liquids delay gastric emptying compared to clear liquids.

Question 8: A six-year-old boy is scheduled for examination of the eye under anesthesia. The father informed that for the past six months the child has been developing progressive weakness of both legs. His elder sibling had died at the age of 14 years. Which drug would you definitely avoid during the anesthetic management?

A. Succinylcholine (Correct Answer)
B. Thiopentone
C. Nitrous oxide
D. Vecuronium

Explanation: **Explanation:** The clinical presentation of progressive leg weakness in a young boy, combined with a family history of early sibling death, is highly suggestive of **Duchenne Muscular Dystrophy (DMD)**. **Why Succinylcholine is avoided:** In patients with myopathies like DMD, the muscle cell membranes (sarcolemma) are unstable. Administration of Succinylcholine, a depolarizing muscle relaxant, can trigger massive efflux of potassium from the muscle cells into the bloodstream. This **acute hyperkalemia** can lead to intractable cardiac arrest. Furthermore, Succinylcholine can trigger **Rhabdomyolysis** (manifesting as myoglobinuria) and is associated with an increased risk of **Malignant Hyperthermia** in these patients. Therefore, it is strictly contraindicated. **Analysis of Incorrect Options:** * **B. Thiopentone:** This is an intravenous induction agent. While it should be used cautiously in patients with cardiac dysfunction (sometimes seen in DMD as cardiomyopathy), it does not carry the same risk of life-threatening hyperkalemia as Succinylcholine. * **C. Nitrous oxide:** This is an inhalational gas used for maintenance. It is generally safe in muscular dystrophy patients. * **D. Vecuronium:** This is a non-depolarizing muscle relaxant (NDMR). NDMRs are the preferred alternative to Succinylcholine in these patients, although they may show increased sensitivity and prolonged recovery times. **High-Yield Clinical Pearls for NEET-PG:** * **Hyperkalemic Cardiac Arrest:** The most common cause of sudden death during anesthesia in an undiagnosed DMD child is Succinylcholine-induced hyperkalemia. * **Avoid Volatile Anesthetics:** Potent inhalational agents (like Halothane or Sevoflurane) are also ideally avoided or used with caution due to the risk of "Anesthesia-Induced Rhabdomyolysis" (AIR). * **Safe Alternatives:** Total Intravenous Anesthesia (TIVA) using Propofol and non-depolarizing relaxants (like Cisatracurium or Vecuronium) is the safest approach.

Question 9: Which of the following best describes a patient classified as ASA -3?

A. Comorbidities with minimal functional limitation
B. Comorbidities with moderate functional limitation (Correct Answer)
C. Comorbidities that represent a constant threat to life
D. No comorbidities

Explanation: The **ASA Physical Status Classification System** is a standardized tool used by anesthesiologists to assess a patient's preoperative physical state and predict perioperative risk. ### **Explanation of the Correct Answer** **Option B** is correct because **ASA Class 3** is defined as a patient with **severe systemic disease** that results in **substantive (moderate) functional limitations**. While the disease is serious, it is not immediately life-threatening. Common examples include poorly controlled diabetes or hypertension, chronic obstructive pulmonary disease (COPD), morbid obesity (BMI ≥40), or a history (>3 months) of myocardial infarction or stroke. ### **Analysis of Incorrect Options** * **Option A (ASA 2):** Describes a patient with mild systemic disease and **minimal/no functional limitations** (e.g., well-controlled HTN, social smoker, or pregnancy). * **Option C (ASA 4):** Describes a patient with severe systemic disease that is a **constant threat to life** (e.g., recent MI <3 months, ongoing cardiac ischemia, or end-stage renal disease not undergoing regular dialysis). * **Option D (ASA 1):** Describes a **normal healthy patient** who is a non-smoker with no or minimal alcohol use. ### **High-Yield Clinical Pearls for NEET-PG** * **ASA 5:** A moribund patient who is not expected to survive without the operation (e.g., ruptured abdominal aneurysm). * **ASA 6:** A declared brain-dead patient whose organs are being removed for donor purposes. * **The "E" Suffix:** If the surgery is an **Emergency**, the letter 'E' is added to the classification (e.g., ASA 3E). This significantly increases the predicted perioperative mortality compared to elective cases. * **Note:** The ASA score does not take the surgical procedure into account; it only assesses the patient's physiological status.

Question 10: Why is glycopyrrolate used as pre-anesthetic medication?

A. It has no central effect as it does not cross the blood-brain barrier. (Correct Answer)
B. It has few side effects.
C. It increases pharyngeal secretions.
D. It causes no post-surgical complications.

Explanation: **Explanation:** Glycopyrrolate is a synthetic **quaternary ammonium compound** used frequently in anesthesia. The core pharmacological reason it is preferred over other anticholinergics (like atropine or scopolamine) is its chemical structure. **1. Why Option A is correct:** Being a quaternary ammonium compound, glycopyrrolate is highly ionized at physiological pH. This prevents it from crossing the **blood-brain barrier (BBB)** and the placental barrier. Consequently, it lacks central anticholinergic effects, such as sedation, delirium, or "Central Anticholinergic Syndrome," making it safer for elderly patients and those requiring rapid cognitive recovery. **2. Why the other options are incorrect:** * **Option B:** While it has a better side-effect profile regarding the CNS, it still possesses peripheral side effects like tachycardia, dry mouth (xerostomia), and urinary retention. * **Option C:** Glycopyrrolate is an antisialogogue; it **decreases** (not increases) salivary and pharyngeal secretions to maintain a clear airway and facilitate intubation. * **Option D:** No drug is entirely free of post-surgical complications. It can still contribute to postoperative urinary retention or tachycardia in susceptible individuals. **High-Yield Clinical Pearls for NEET-PG:** * **Potency:** Glycopyrrolate is **twice as potent** an antisialogogue as atropine and has a longer duration of action. * **Tachycardia:** It causes less initial tachycardia compared to atropine, making it more cardiovascularly stable. * **Reversal Agent:** It is the preferred agent to co-administer with **Neostigmine** during the reversal of neuromuscular blockade because their onset times match closely, minimizing muscarinic side effects. * **Mnemonic:** Glycopyrrolate stays **"Peripheral"** (Quaternary = Quiet in the CNS).

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