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Characteristics of Practical Op Amps01:16

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A difference amplifier, a crucial component in numerous electronic devices, ideally amplifies only the difference-mode signal, which is the difference between two input signals. However, in practical circuits, the output voltage depends on both the differential gain and the common-mode gain.
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Nursing Clinical Information System (NCIS)
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Methotrexate overdose in clinical practice.

Ashok Kumar Pannu1

  • 1Department of Internal Medicine, Post Graduate Institute of Medical Education and Research, Chandigarh, India.

Current Drug Metabolism
|August 7, 2019
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Summary
This summary is machine-generated.

Methotrexate overdose can cause severe organ damage. Prompt recognition through patient education and regular monitoring is crucial for effective management and preventing life-threatening complications.

Keywords:
Methotrexatecarboxypeptidase-G2folinic acidglucarpidaseleucovorinoverdosepoisoningtoxicity.

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Area of Science:

  • Pharmacology
  • Clinical Toxicology
  • Drug Safety

Background:

  • Methotrexate is a widely used folic-acid antagonist with significant adverse effects.
  • Potential toxicities include bone marrow suppression, organ dysfunction, and neurotoxicity.
  • Rapid onset of severe neutropenia, sepsis, and renal failure necessitates careful management.

Purpose of the Study:

  • To provide clinicians with an updated review on methotrexate overdose.
  • To cover pharmacology, clinical presentation, laboratory evaluation, and treatment strategies.
  • To synthesize current knowledge for improved patient care.

Main Methods:

  • Comprehensive literature review of the past six decades.
  • Inclusion of landmark articles from major databases (PubMed, EMBASE, Cochrane Library).
  • Focus on evidence relevant to current clinical practice.

Main Results:

  • Methotrexate overdose exhibits complex toxicokinetics and diverse clinical features.
  • Life-threatening organ dysfunction (bone marrow, kidney, CNS) is a primary concern.
  • Effective management involves supportive care, antidotal therapy (folinic acid, carboxypeptidase-G2), and plasma alkalization.

Conclusions:

  • Prevention is paramount in managing methotrexate toxicity.
  • Emphasizes patient education, clinical observation, and laboratory monitoring.
  • Early recognition and diagnosis are key to successful outcomes.