Logo

OpiCalc

FavoritesSpecialtiesDrugsGuidelinesMost Used

All Specialties

OpiCalc Logo
FavoritesSpecialtiesDrugsGuidelinesMost Used
FavesSpecsDrugsGuidesTop
ABCD2 ScoreACR CriteriaCorrected SodiumFENaHEART ScoreLights CriteriaNEWS2NRS-2002Osmolality GapRCRI (Lee Score)TTKG
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 Ā© 2018-2026

•

All Rights Reserved

Recent Journal Updates

DiabetologiaJun 6, 2026
Plasma small RNA profiling reveals a three-miRNA signature associated with early beta cell dysfunction across glucose tolerance stages

Clinical Context

We think this has broad domain relevance to TTKG.

DiabetologiaJun 5, 2026
MASLD, diabetes and PMOS across the female life stages

Clinical Context

We think this has broad domain relevance to TTKG.

Cancer MedicineJun 5, 2026
Bone Marrow Failure Model Mimics Aplastic Anemia Patients: Single‐Cell Landscape of Immune Response Reveals Novel Mechanisms of Immune Imbalance in AA

Clinical Context

We think this has broad domain relevance to TTKG.

TTKG

Transtubular Potassium Gradient (TTKG): Assesses aldosterone activity and renal handling of potassium in hyper/hypokalemia.

K (mEq/L)

Osm (mOsm/kg)

K (mEq/L)

Osm (mOsm/kg)

Na (mEq/L)

Guidelines & Evidence

Verified

Last Review: 2026

When to Use

Last Comprehensive Review: 2026

Related Internal Medicine Tools

Osmolality Gap
FENa
RCRI
Lights Criteria
HEART Score
Corrected Sodium
NRS-2002
ACR Criteria
NEWS2
ABCD2 Score
Internal Medicine CalculatorsCardiology CalculatorsPulmonary Calculators
Have feedback about this calculator?Let us know.