Trauma notes Flashcards

1
Q

What is a hematoma?

A

A localized mass of extravasated blood that is confined within an organ, tissue, or space.

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2
Q

What is a seroma?

A

A mass caused by the localized accumulation of serum within a tissue or organ.

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3
Q

What is a subcapsular hematoma?

A

A hematoma located in the subcapsular space of an organ.

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4
Q

What is a lymphocele?

A

A cystic collection containing lymph, often seen after surgical procedures.

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5
Q

What is a urinoma?

A

A cystic collection of extravasated urine, most often seen after interventional procedures.

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6
Q

What is a pseudocyst?

A

A walled off fluid collection that forms in response to extravasated enzymes.

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7
Q

What are renal lacerations?

A

Tearing of the renal tissues.

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8
Q

What is hemobilia?

A

The presence of blood in the biliary tree (GB or ducts).

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9
Q

What is a biloma?

A

An encapsulated collection of bile in the peritoneal cavity.

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10
Q

What is pneumobilia?

A

Air within the biliary tree, most commonly seen as a result of previous biliary intervention.

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11
Q

What is ascites?

A

An accumulation of serous fluid in the peritoneal cavity.

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12
Q

What is a hernia?

A

A protrusion of a part or structure through the tissues normally containing it.

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13
Q

What are common causes of abdominal trauma?

A

Surgery, biopsies, motor vehicle accidents (MVA), blunt or penetrating instrument trauma, falls, etc.

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14
Q

What clinical presentations are associated with abdominal trauma?

A

Dependent on severity of trauma, area damaged and time period; may include hemodynamic instability, pain, and rigid abdomen.

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15
Q

What lab test is important in assessing trauma?

A

Hematocrit, which measures the volume of red blood cells in whole blood.

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16
Q

How does timing affect the sonographic appearance of a hematoma?

A

Acute (< 24 hours): Echogenic; Within the 1st week: Decreases in echogenicity; 2-3 weeks post trauma: Less defined (more isoechoic).

17
Q

How is hepatic trauma managed?

A

Managed conservatively in hemodynamically stable patients.

18
Q

What is the most common site of hepatic injury?

A

Right posterior segment.

19
Q

What is the imaging modality of choice for spleen trauma?

A

CT modality.

20
Q

What are the signs of bladder trauma?

A

Look for large fluid collections, urinomas.

21
Q

What is the most common cause of adrenal hemorrhage in infants?

A

Traumatic delivery.

22
Q

What is the purpose of the Focused Assessment with Sonography for Trauma (FAST)?

A

Screening for intra-abdominal injuries.

23
Q

What are the types of hernias?

A

Reducible, incarcerated, and strangulated hernias.

24
Q

What are common causes of rectus sheath hematoma?

A

Trauma, surgery, vigorous abdominal contractions, intense straining, and spontaneous (anticoagulant therapy).