Preoperative Evaluation and Management

Preoperative Evaluation and Management Indian Medical PG Question 1: In an accident case, after the arrival of medical team, all should be done in early management except;

• A. Glasgow coma scale
• B. Check BP (Correct Answer)
• C. Stabilization of cervical vertebrae
• D. Check Respiration

Preoperative Evaluation and Management Explanation: ***Check BP*** - In the **immediate/early management** of trauma (primary survey), while circulation assessment is crucial, the **initial assessment of circulation** focuses on: - **Pulse rate and quality** (radial, carotid) - **Capillary refill time** - **Skin color and temperature** - **Active hemorrhage control** - **Formal blood pressure measurement** with a cuff, while important, is typically recorded during or after these rapid initial assessments, as it takes more time to obtain an accurate reading. - In the context of this question, among the four options listed, BP measurement is relatively less immediate compared to the other life-saving priorities (airway protection, breathing assessment, C-spine stabilization, and GCS). - **Note:** This is a nuanced distinction - BP is assessed during primary survey, but the other three options have more immediate life-threatening implications if not addressed. *Glasgow coma scale* - **GCS assessment** is part of the **"D" (Disability)** step in the ATLS primary survey. - It is performed early to assess neurological status and level of consciousness. - GCS <8 indicates need for **definitive airway protection** (intubation). - This is a critical early assessment that guides immediate management decisions. *Stabilization of cervical vertebrae* - **C-spine immobilization** is part of the **"A" (Airway)** step - "Airway with cervical spine protection." - It is performed **simultaneously** with airway assessment using a **rigid cervical collar**. - This is the **first priority** in trauma management to prevent secondary spinal cord injury. - All trauma patients should be assumed to have C-spine injury until proven otherwise. *Check Respiration* - **Respiratory assessment** is part of the **"B" (Breathing)** step in the ATLS primary survey. - This involves checking: - **Respiratory rate and pattern** - **Chest wall movement** - **Air entry bilaterally** - **Signs of tension pneumothorax or flail chest** - This is an immediate life-saving priority and must be assessed early.

Preoperative Evaluation and Management Indian Medical PG Question 2: Pre-operative Nutrition Screening in a patient with morbid obesity planned for Gastric Bypass includes all EXCEPT:

• A. Serum Insulin (Correct Answer)
• B. Serum Vitamin B12
• C. Serum Calcium
• D. Serum Magnesium

Preoperative Evaluation and Management Explanation: ***Serum Insulin*** - While relevant to **diabetes** and metabolic health, routine **pre-operative insulin screening** is not standard for gastric bypass. - Nutritional screening focuses on identifying and correcting deficiencies that could complicate surgery or post-operative recovery. *Serum Vitamin B12* - Patients undergoing **gastric bypass** are at high risk for **Vitamin B12 deficiency** due to altered absorption in the bypassed stomach and small intestine. - Pre-operative screening is essential to identify and replete deficiencies to prevent post-operative neurological complications. *Serum Calcium* - **Malabsorption of calcium** is a known risk after gastric bypass due to changes in the digestive tract. - Pre-operative **calcium levels** are crucial for bone health assessment and to guide supplementation strategies. *Serum Magnesium* - **Magnesium deficiency** can occur post-gastric bypass due to malabsorption. - Pre-operative screening helps to identify existing deficiencies, which can impact cardiac function and neuromuscular health.

Preoperative Evaluation and Management Indian Medical PG Question 3: Among the following conditions, laparoscopy carries the highest risk in patients with:

• A. COPD (Correct Answer)
• B. Diabetes
• C. Hypertension
• D. Obesity

Preoperative Evaluation and Management Explanation: ***COPD*** - **COPD** patients have severely compromised respiratory function, and the **pneumoperitoneum** from CO2 insufflation causes **diaphragmatic splinting** and reduced lung compliance, leading to dangerous **CO2 retention** and respiratory failure. - The increased **intra-abdominal pressure** significantly impairs ventilation in patients who already have limited respiratory reserve, making laparoscopy extremely high-risk. *Diabetes* - While diabetes increases risks of **poor wound healing** and **infection**, these complications are not specifically worse with laparoscopy compared to open surgery. - **Perioperative glucose management** can effectively control diabetes-related risks, and laparoscopy may actually offer benefits like smaller incisions. *Hypertension* - **Hypertension** requires careful **blood pressure monitoring** during surgery but doesn't pose risks unique to laparoscopic procedures. - Well-controlled hypertension with appropriate **antihypertensive medications** allows for safe laparoscopic surgery. *Obesity* - **Obesity** makes laparoscopy technically challenging due to **thick abdominal walls** and need for higher insufflation pressures. - However, laparoscopy is often **preferred over open surgery** in obese patients due to reduced wound complications and faster recovery.

Preoperative Evaluation and Management Indian Medical PG 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

Preoperative Evaluation and Management 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.

Preoperative Evaluation and Management Indian Medical PG Question 5: Abbreviated laparotomy done for:

• A. Hemodynamically stable patients with minor trauma
• B. Damage control in hemodynamically unstable trauma patients (Correct Answer)
• C. Elective abdominal surgeries
• D. Early wound healing promotion

Preoperative Evaluation and Management Explanation: ***Damage control in hemodynamically unstable trauma patients*** - **Abbreviated laparotomy** is a key component of **damage control surgery**, primarily indicated for hemodynamically unstable trauma patients. - The goal is to rapidly control life-threatening issues like hemorrhage and contamination, then temporarily close the abdomen for physiologic stabilization before definitive repair. *Hemodynamically stable patients with minor trauma* - These patients typically do not require prompt surgical intervention; their injuries can often be managed non-operatively or with standard surgical techniques. - An abbreviated laparotomy is an aggressive approach reserved for severe, life-threatening scenarios, not minor trauma in stable patients. *Elective abdominal surgeries* - Elective surgeries are planned procedures performed on stable patients with no immediate life-threatening conditions. - They allow for complete surgical repair in a single setting, which is the opposite of the staged approach of an abbreviated laparotomy. *Early wound healing promotion* - The focus of an abbreviated laparotomy is on resuscitation and source control, not primarily on wound healing. - The initial closure is temporary, often leaving the wound open, which is not conducive to early, primary wound healing.

Preoperative Evaluation and Management Flashcard 1 of 5

Question: A patient with well controlled DM/HTN would be classified under ASA _____

Answer: II

Preoperative Evaluation and Management Flashcard 2 of 5

Question: A patient with  would be classified under ASA _____

Answer: IV

Preoperative Evaluation and Management Flashcard 3 of 5

Question: A patient undergoing regular scheduled dialysis would be classified under ASA _____

Answer: III

Preoperative Evaluation and Management Flashcard 4 of 5

Question: Recommended preoperative fasting periods for all above 1 year of age are _____ hours for clear fluids, _____ hours for a light meal, and _____ hours for fried, fatty food.

Answer: 2; 6; 8

Preoperative Evaluation and Management Flashcard 5 of 5

Question: A patient with obesity (BMI: >40) would be classified under ASA _____

Answer: III