Logo

OpiCalc

FavoritesSpecialtiesDrugsGuidelinesMost Used

All Specialties

OpiCalc Logo
FavoritesSpecialtiesDrugsGuidelinesMost Used
FavesSpecsDrugsGuidesTop
ACMG/AMP Variant ClassifierAmsterdam Criteria IICYP2C19 Phenotype InterpreterDLCN Score (FH)GJB2 Variant InterpreterGhent-2 Criteria (Marfan)HTT CAG Repeat (Huntington)Hereditary Thrombophilia VTE RiskRevised Bethesda GuidelinesTyrer-Cuzick Breast Risk
OpiCalc Logo

OpiCalc

Easy, fast, and private medical tools for clinicians. Always free.

No Login Required
Ready for the Bedside

Resources

About UsEditorial PolicyMedical DisclaimerPrivacy PolicyTerms of UseCookie Policy

Support

Contact Us

Clinical Notice:OpiCalc is not a substitute for professional clinical judgment. Always verify dosages and guidelines.

OpiCalc © 2018-2026

•

All Rights Reserved

Specialty Module

Medical Genetics

Variant classification, cancer syndrome criteria, and genomic risk models.

10

Clinical Tools

6

Clinical Domains

10

Conditions Covered

4

Guidelines Referenced

Clinical Context

Hereditary cancer syndrome identification is critical for risk-reducing interventions. The Amsterdam II criteria and Revised Bethesda guidelines identify individuals at risk for Lynch syndrome (hereditary non-polyposis colorectal cancer), guiding tumor testing for microsatellite instability (MSI) and germline genetic testing.

Clinical variant interpretation follows the ACMG/AMP 2015 guidelines, which classify sequence variants into five categories (Pathogenic, Likely Pathogenic, Uncertain Significance, Likely Benign, Benign) using a standardized framework of population data, computational data, functional data, and segregation data.

Pharmacogenomic tools including phenotype-to-dose adjustment calculators for TPMT/NUDT15 (thiopurine dosing), CYP2C19 (clopidogrel metabolism), and CYP2D6 (tamoxifen metabolism) support precision prescribing and reduce adverse drug events in genetically susceptible patients.

Conditions & Domains

Clinical Conditions Covered

Lynch Syndrome
Hereditary Breast and Ovarian Cancer
Familial Adenomatous Polyposis
Li-Fraumeni Syndrome
Multiple Endocrine Neoplasia
Neurofibromatosis
Marfan Syndrome
Ehlers-Danlos Syndrome
Hereditary Hemochromatosis
Familial Hypercholesterolemia

Evidence Base

Referenced Guidelines & Standards

ACMG/AMP Variant Interpretation Guidelines
NCCN Genetic/Familial High-Risk Guidelines
NSGC Practice Guidelines
ACMG Incidental Findings Guidelines

Toolkit

10 Clinical Calculators

Peer-Reviewed
ACMG/AMP Variant Classifier
Amsterdam Criteria II
CYP2C19 Phenotype Interpreter
DLCN Score (FH)
GJB2 Variant Interpreter
Ghent-2 Criteria (Marfan)
HTT CAG Repeat (Huntington)
Hereditary Thrombophilia VTE Risk
Revised Bethesda Guidelines
Tyrer-Cuzick Breast Risk

About

Medical Genetics

Genetics tools assist in the interpretation of hereditary risk, including the Amsterdam criteria for Lynch syndrome and the ACMG/AMP variant classifier for genomic variants.

Covered Areas

  • Hereditary Cancer Syndromes
  • Clinical Genomic Interpretation
  • Cardiovascular Genetic Risk
  • Pharmacogenomics Tools
  • Variant Classification
  • Prenatal Genetic Screening

All tools are based on published clinical evidence. Results should be interpreted alongside individual patient presentation and current institutional guidelines.