Warfarin (Coumadin, Jantoven)

ATI-format individual drug card with NCLEX-focused assessment, safety, teaching, and source attribution.

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CardiacHematologic / Immuneneeds review

Warfarin (Coumadin, Jantoven)

ATI class: Anticoagulant / Vitamin K antagonist

Action

  • ATI/source-folder candidate for Warfarin (Coumadin, Jantoven); verify mechanism against the source table before validation.

Therapeutic use

  • Review under Coagulation Disorders medication safety.

Nursing assessment

  • Monitor INR/PT and bleeding signs.
  • Assess stool, urine, bruising, gums, neurologic status, fall risk, and medication adherence.
  • Review diet consistency, pregnancy status, and interacting medications.

Administration

  • Verify route against the order and source table.

Side effects

  • Verify common side effects against the source table.

Adverse effects

  • Bleeding
  • Intracranial hemorrhage
  • GI bleeding
  • Skin necrosis
  • Fetal harm

Interactions

  • Antiplatelets
  • NSAIDs
  • Antibiotics
  • Amiodarone
  • Alcohol
  • Herbal supplements such as ginkgo or St. John's wort
  • Vitamin K intake changes

Contraindications

  • See source-specific contraindications and precautions before administration.

Precautions

  • Pregnancy, active major bleeding, severe bleeding risk, or inability to monitor safely.
  • Use caution with liver disease, alcohol misuse, fall risk, recent surgery, and interacting medications.

Client teaching

  • Keep vitamin K intake consistent rather than avoiding all green vegetables.
  • Use soft toothbrush and electric razor.
  • Report severe headache, black stools, blood in urine, vomiting blood, or uncontrolled bleeding.
  • Keep INR appointments.

Medication outcomes

  • Therapeutic response with no priority adverse effects.

Antidote / rescue

  • No specific antidote is seeded; hold/question unsafe doses and manage toxicity per provider, facility, or poison-control guidance.

NCLEX priority cues

  • Severe headache or neurologic change can signal intracranial bleeding.
  • Vitamin K is the classic reversal concept.
  • Uncontrolled bleeding beats routine anticoagulation teaching.

Medication classes

Anticoagulants

Source attribution

Google Drive source topic: Coagulation Disorders
google-drive
Sentinel pharmacology API reference
sentinel-api
Manual ATI-format NCLEX candidate normalization
manual-seed

Related study cards

Shows the medication class, ATI cues, source references, and connected study cards for this drug.

12 study links
Med classmedication class
Anticoagulants

Reduces clot formation by interfering with the coagulation cascade.

ATI cueInteraction
Alcohol

ATI medication interaction concept.

ATI cueInteraction
Amiodarone

ATI medication interaction concept.

ATI cueInteraction
Antibiotics

ATI medication interaction concept.

ATI cueClass
Anticoagulant

ATI medication class concept.

ATI cueInteraction
Antiplatelets

ATI medication interaction concept.

ATI cueNursing Assessment
Assess stool, urine, bruising, gums, neurologic status, fall risk, and medication adherence.

ATI medication nursing assessment concept.

ATI cueMechanism of Action
ATI/source-folder candidate for Warfarin (Coumadin, Jantoven); verify mechanism against the source table before validation.

ATI medication mechanism of action concept.

ATI cueAdverse Effect
Bleeding

ATI medication adverse effect concept.

ATI cueAdverse Effect
Fetal harm

ATI medication adverse effect concept.

ATI cueAdverse Effect
GI bleeding

ATI medication adverse effect concept.

ATI cueInteraction
Herbal supplements such as ginkgo or St. John's wort

ATI medication interaction concept.