General surgery Flashcards
(145 cards)
How long should patients avoid food or feeds and avoid any clear fluids before surgery? (2)
- 6 hours no food or feeds
- 2 hours no clear fluids
What term refers to fluid output that is difficult to measure, such as via respiration, stools, burns and sweat? (1)
Insensible fluid losses
What arteries supply the foregut, midgut and hindgut? (3)
- Foregut: coeliac artery
- Midgut: superior mesenteric artery
- Hindgut: inferior mesenteric artery
What procedure involves removing the entire length of the large intestine? (1)
Panproctocolectomy
What organ does pancreatic cancer usually spread to first? (1)
Liver
What is the approximate daily maintenance requirements of glucose?
50-100g
What are the two types of volvulus? (2)
- Sigmoid volvulus (more common)
- Caecal volvulus
What complication can SGLT2 inhibitors (e.g., dapagliflozin) cause in dehydrated or acutely unwell patients? (1)
DKA
Give two key complications of excessive normal 0.9% saline? (2)
- Hypernatraemia
- Hyperchloraemic metabolic acidosis
What are the key causes of acute right upper quadrant pain? (3)
- Biliary colic
- Acute cholecystitis
- Acute cholangitis
How long should the combined contraceptive pill be stopped prior to surgery? (1)
4 weeks
What specific sign is suggestive of acute cholecystitis? (1)
Murphy’s sign
What tumour marker may be used for monitoring bowel cancer during and after treatment? (1)
Carcinoembryonic antigen (CEA)
What is a Gridiron incision used for? (1)
Open appendicetomy
What blood test is used in females of child bearing age presenting with abdominal pain? Why? (2)
- Serum human chorionic gonadotropin (hCG)
- To exclude pregnancy
What term describes when rapidly releasing pressure on the abdomen causes worse pain than the pressure itself? (1)
Rebound tenderness
Where do cholangiocarcinomas originate? (1)
What is the typical histological type? (1)
- Bile ducts
- Adenocarcinoma
What is the usual definitive management of acute appendicitis? (1)
Laparoscopic appendicectomy
What condition refers to pus in the gallbladder? (1)
Gallbladder empyema
What is the gold standard investigation for suspected bowel cancer? (1)
Colonoscopy
What needs monitoring daily for patients on maintenance fluids? (3)
- Fluid status
- Fluid balance chart
- U&E blood tests
What complication is metformin associated with in the perioperative period? (1)
Lactic acidosis
What incisions may be used for a liver transplant? (2)
- “Rooftop” incision
- “Mercedes Benz” incision
When would you avoid using ondansetron as a treatment for post-operative nausea and vomiting? (1)
Patients at risk of prolonged QT interval