DIC Flashcards

(35 cards)

1
Q

What does DIC stand for?

A

Disseminated Intravascular Coagulation

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2
Q

What is DIC?

A

A serious disorder where widespread clotting and bleeding occur due to an overactivated coagulation cascade.

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3
Q

What usually triggers DIC?

A

A severe underlying condition that activates the clotting cascade.

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4
Q

Give an example of a condition that can trigger DIC.

A

Postpartum hemorrhage

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5
Q

What happens to the coagulation cascade in DIC?

A

It becomes overactivated, causing microclots to form throughout small blood vessels.

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6
Q

What happens after microclots form?

A

The body uses up platelets and clotting factors, leading to deficiency and bleeding.

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7
Q

Describe the DIC cycle in simple terms.

A

Trigger → Clotting → Platelet/clotting factor use → Bleeding → Clot breakdown → Worsened bleeding → Cycle continues.

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8
Q

What are some common triggers of DIC?

A

• Infections (esp. sepsis)
• Trauma
• Cancer (end-stage)
• Obstetric complications
• Severe burns
• Hemolytic transfusion reaction
• Major surgery

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9
Q

What obstetric complication can cause DIC?

A

Postpartum hemorrhage (may require hysterectomy)

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10
Q

What infection is a major cause of DIC?

A

Sepsis

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11
Q

What are the bleeding signs of DIC?

A

• Petechiae
• Ecchymoses
• Bleeding gums
• Epistaxis
• GI bleed
• Hematuria
• Bleeding from invasive sites

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12
Q

What are the systemic or clotting-related signs of DIC?

A

• Hypotension
• Tachycardia
• Confusion/AMS
• Fever
• AKI
• Respiratory failure
• Liver dysfunction
• Cardiac compromise

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13
Q

Why does AKI occur in DIC?

A

Because microclots block blood flow to the kidneys.

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14
Q

What is the first priority in DIC management?

A

Treat the underlying cause (e.g., infection, trauma, cancer, obstetric cause).

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15
Q

What diagnostic test shows low platelets in DIC?

A

CBC

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16
Q

What happens to PT and PTT in DIC?

A

They are prolonged (blood is very thin).

17
Q

What happens to fibrinogen levels in DIC?

A

Low, because it’s used up in excessive clotting.

18
Q

What happens to D-Dimer levels in DIC?

A

Elevated, due to breakdown of microclots.

19
Q

Why is the D-Dimer elevated?

A

It indicates active fibrinolysis — the body is breaking down clots.

20
Q

What lab combination strongly suggests DIC?

A

Low platelets, prolonged PT/PTT, low fibrinogen, and elevated D-dimer.

21
Q

What is the general approach to DIC treatment?

A

Treat cause, replace what’s missing, support organs, prevent complications.

22
Q

What is the treatment if the patient is bleeding in DIC?

A

• Platelet transfusion if <50,000
• Fresh Frozen Plasma (FFP) if PT/aPTT prolonged
• Cryoprecipitate if fibrinogen <100

23
Q

What blood product replaces fibrinogen?

A

Cryoprecipitate

24
Q

What is given if PT/aPTT are prolonged?

A

Fresh Frozen Plasma (FFP)

25
When are platelets given in DIC?
When platelet count is <50,000.
26
What is given in severe, refractory bleeding when other treatments fail?
Recombinant Activated Factor VII
27
When is Heparin used in DIC?
When clotting is more problematic than bleeding.
28
What other medication may be used to treat excessive clotting?
Antithrombin III
29
What organ supports may be required for DIC?
• Renal support (AKI) • Respiratory support (ARDS) • Hemodynamic support (shock)
30
What are the nursing priorities for DIC?
• Frequent VS monitoring • Assess for bleeding/clotting • Monitor lab values • Monitor organ function • Track treatment effectiveness
31
What are the goals of nursing care in DIC?
• Prevent additional bleeding • Prevent new clots • Support organ function • Maintain fluid/electrolyte balance
32
What lab trends should nurses watch in DIC?
Platelets ↓, PT/PTT ↑, Fibrinogen ↓, D-dimer ↑
33
What does nursing monitoring for organ dysfunction include?
Checking for renal failure, respiratory distress, mental changes, and poor perfusion.
34
What should nurses teach patients/families about DIC?
• What DIC is and why it’s happening • Why blood products are needed • Signs of bleeding/clotting • Importance of close monitoring
35
Why is fluid and electrolyte management important in DIC?
To support circulatory stability and prevent hypoperfusion of organs.