Burns & Fluid Resuscitation — Practice

Question 1

Which finding indicates a full thickness burn?

Accepted Answer

C

Question 2

What is the correct immediate first aid for a thermal burn?

Accepted Answer

B

Question 3

A 70 kg adult has 40 per cent burns. Using the Parkland formula, how much fluid is given in the first 8 hours?

Accepted Answer

A

Question 4

A man rescued from a house fire has soot in the mouth and hoarseness. Oxygen saturation is 99 per cent on air. What is the correct interpretation?

Accepted Answer

B

Question 5

A patient with a high-voltage electrical injury passes dark urine that is dipstick positive for blood but shows no red cells on microscopy. What is the explanation?

Accepted Answer

B

Question 6

A patient with 50 per cent burns arrives 4 hours after injury. How should the first half of the Parkland volume be given?

Accepted Answer

B

Question 7

A circumferentially burnt arm develops increasing pain and reduced sensation, but the radial pulse remains palpable. What is the correct action?

Accepted Answer

C

Question 8

A split thickness graft on a burn fails to take. Which is not a recognised cause?

Accepted Answer

The four established causes of graft failure are haematoma or seroma lifting the graft away from its bed, shear from inadequate immobilisation, infection, and an avascular recipient bed such as exposed bone or tendon stripped of periosteum or paratenon.

All four share one mechanism: a graft has no blood supply of its own and survives initially by imbibition from the bed, then by capillary ingrowth. Anything that separates the graft from the bed, or leaves the bed unable to supply it, prevents take. Graft thickness itself is not a cause of failure, since a thinner split thickness graft in fact takes more reliably on a marginal bed than a full thickness graft does.

Question 9

Why do alkali burns penetrate more deeply than acid burns?

Accepted Answer

B

Practice — Burns & Fluid Resuscitation

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