This tool helps you estimate your expected gross annual income efficiently.
Estimated Gestational Age (EGA) Calculator
This EGA calculator helps you estimate the gestational age of a pregnancy. You can input the last menstrual period (LMP), your average cycle length, or the details of an ultrasound scan for an accurate estimate.
How to Use
- Enter the date of the Last Menstrual Period (LMP).
- Enter your usual cycle length in days.
- If you have had an ultrasound, enter the date of the ultrasound and the estimated gestational age (weeks and days) provided by the ultrasound.
- Click the “Calculate” button to get the estimated gestational age.
How It Calculates
The calculator uses the LMP and cycle length to estimate the gestational age, assuming a normal 28-day cycle. It corrects the estimated gestational age based on any given ultrasound data by calculating the difference in days between the US date and today’s date. The estimated age is calculated in weeks and days.
Limitations
This calculator provides an estimate only. For a more precise gestational age, consult your healthcare provider. Discrepancies in cycle length and date entries may affect the accuracy of the results.
Use Cases for This Calculator
Calculate Estimated Glomerular Filtration Rate (eGFR) for Adults
Estimate the kidney function in adults using the standardized eGFR calculation based on serum creatinine levels, age, gender, and race. This helps clinicians to assess and monitor renal function efficiently.
Assess Renal Function in Elderly Patients
Determine the eGFR value in elderly patients to evaluate their kidney function. The eGFR estimation considers age, serum creatinine levels, and other factors crucial in managing renal health in older individuals.
Monitor Kidney Health in Patients with Chronic Diseases
Track the eGFR changes over time in patients with chronic conditions like diabetes or hypertension. Regular eGFR assessments aid in early detection and management of potential kidney complications.
Evaluate Renal Function in Pediatric Patients
Calculate eGFR for children using specialized formulas adjusted for age, height, serum creatinine levels, and other variables. This assists pediatricians in monitoring kidney health and drug dosing in young patients.
Adjust Medication Dosages based on eGFR
Modify drug dosages according to the estimated eGFR value to ensure safe and effective medication use. This practice is crucial in preventing drug-related complications in patients with renal impairment.
Assess Kidney Function in Athletes or Fitness Enthusiasts
Determine eGFR levels in active individuals by factoring in muscle mass and creatinine levels. Monitoring eGFR in athletes helps ensure optimal kidney function and overall health during intense physical training.
Monitor Renal Function during Pregnancy
Track eGFR changes in pregnant women to assess kidney health and detect any potential issues early on. Regular eGFR monitoring during pregnancy is vital for ensuring maternal and fetal well-being.
Assess eGFR in Patients with Acute Kidney Injury
Estimate eGFR values in individuals experiencing sudden kidney function decline due to factors like dehydration or medication toxicity. Monitoring eGFR in acute kidney injury cases aids in prompt intervention and management.
Calculate Estimated Creatinine Clearance for Drug Dosing
Use eGFR calculations to estimate creatinine clearance, a key parameter for drug dosing in clinical settings. Accurate estimation of creatinine clearance guides healthcare providers in determining appropriate drug regimens for patients.
Monitor Kidney Function in Postoperative Patients
Track eGFR changes post-surgery to evaluate renal function recovery and ensure proper kidney health during the recovery phase. Monitoring eGFR after surgeries helps healthcare teams assess and manage any potential kidney complications.