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Hepatic blood flow

Q. All are true regarding hepatic blood flow except
A. Liver has dual blood supply from portal vein and hepatic artery
B. 70% of liver oxygen comes from the hepatic artery
C. 70-80% of blood supply to the liver is from portal vein

d) Liver receives 25% of cardiac output

Answer for premium

The explanation discusses how much blood and oxygen goes through portal vein and hepatic artery to the liver

What is hepatic artery buffer response

 

Esophagus Length DNB 2018

Q) Length of Esophagus

 A. 20cm
B. 25cm
C. 30-35cm
D. 40cm


Answer

29) b

The esophageal length is anatomically defined as the distance between the cricoid cartilage and the gastric
orifice. It ranges in adults from 22 to 28 cm (24
± 5 SD), 3 to 6 cm of which are located in the abdomen.

The shortest distance between the cricoid cartilage and the celiac axis is the orthotopic route in the posterior mediastinum, being 30 cm. The retrosternal (32 cm) and the subcutaneous route (34 cm) proved to be
longer

Ref Shackelford page 10

Ludwig’s Angina

Q Cause of mortality in Ludwig’s angina
A. Asphyxia
B. Pneumothorax
C. Hemorrhage
D. Sepsis

Answer

Ludwig's angina is an inflammatory  condition of the neck which is due to 

  1. Streptococcal infection
  2. Anaerobic infection
  3. Infection of malignancy in the neck

Read on ......

 

Liver trauma

Q) All are true for blunt hepatic trauma except
A. Grade V liver injuries are associated with vascular avulsion
B. Hepatic packing is an expeditious method to control bleeding in blunt hepatic trauma
C. After damage control Surgery and hepatic packing, abdominal compartment syndrome can
happen in immediate postoperative period
D. Post conservative management, in the 3rd week anemia MC occurs due to subcapsular
hematoma rupture

Answer

anatomy of esophagus

Q Which of the following is true about anatomy of esophagus?
A. Oesophageal hiatus is superior to aortic hiatus
B. Thoracic duct crosses esophagus at T3-T4level at the level of azygos vein arch
C. Laimer triangle is superior to the Killians triangle

D. In the mediastinum right vagus runs anteriorly and left vagus runs posteriorly

Answer

Post op chyle leak

Q 27 Postoperative chyle leak following esophagectomy which is true?
A. Intraoperative prophylactic ligation of thoracic duct reduce leak risks
B. Conservative management - almost all heal by 3 weeks
C. Transthoracic ligation only
D. Conservative treatment includes antibiotics, enteral nutrition only

Answer 

 

Melanoma

 Q) Pigmented lesion suspicious melanoma of size 1cm with ulceration and features of ABCD,
next step
A. Wide Local Excision  with 1cm margin
B. Excision biopsy with 1-2mm margin
C. Punch biopsy at the edge of the lesion
D. Incisional biopsy

Answer in Q 44