phytonadione
Học thuậtThân thiện
Definition
Noun: 1. A synthetic form of vitamin K1: Phytonadione is a fat-soluble vitamin, chemically identical to the naturally occurring vitamin K1 (phylloquinone). It is essential for the production of certain proteins required for blood clotting (coagulation).
Usage Examples
- Noun:
- The doctor administered phytonadione to the newborn to prevent hemorrhagic disease.
- A deficiency in phytonadione can lead to excessive bleeding and bruising.
- This medication contains phytonadione to help reverse the effects of certain blood-thinning drugs.
Advanced Usage
- Medical Context: Phytonadione is specifically used in clinical settings to treat or prevent bleeding disorders caused by vitamin K deficiency, malabsorption syndromes, or overdose of anticoagulants like warfarin.
- The standard treatment for warfarin toxicity is an intravenous injection of phytonadione.
Variants and Related Words
- Vitamin K1: The natural form of the vitamin, synonymous with phytonadione in function.
- Phylloquinone: The scientific name for natural vitamin K1.
- Menadione: A synthetic form of vitamin K (K3), which is a different compound with a similar function.
Synonyms
- Vitamin K1
- Phylloquinone (specifically for the natural form)
Related Phrases
- Coagulation vitamin: An older descriptive term for vitamin K, highlighting its primary role in the blood clotting process.