Commonly Used Calculation Formulas in Clinical Medicine
Apr 24, 2024
In clinical medical practice, accurate calculations and assessments are critical to ensuring patients receive appropriate treatment. Whether it is judging kidney function, adjusting drug dosage, or predicting the prognosis of a disease, a series of precise calculation formulas play an indispensable role. In order to facilitate doctors to make clinical judgments efficiently and accurately, Yimaitong has carefully compiled a number of commonly used clinical medical calculation formulas, with a view to providing assistance to everyone's medical practice and improving the efficiency of your clinical decision-making process.
Click to Cistanche for kidney disease
1. eGFR glomerular filtration rate (CKD-EPI) calculation formula
2021 eGFR = 142 x (Scr/A)^B x (0.9938)^Age x C (Scr: Serum Creatinine)
(1) Female C value: 1.012
Scr≤0.7mg/dL, A=0.7, B=-0.241; Scr>0.7mg/dL, A=0.7, B=-1.2
(2) Male C value: 1
Scr≤0.9mg/dL, A=0.9, B=-0.302; Scr>0.9mg/dL, A=0.9, B=-1.2
2. eGFR glomerular filtration rate (2006 improved IMDS-MDRD) calculation formula
eGFR=186 x Scr^ (-1.154) x (age)^ (-0.203) x (0.742, female) x (1.212, black) (Scr: serum creatinine)
3. Creatinine clearance (Cockcroft-Gault)
Men: eGFR = (140 - age) x weight / (serum creatinine x 72)
Women: eGFR = (140 - age) x weight / (serum creatinine x 72) x 0.85
4. Body surface area (BSA) (click to calculate quickly)
BSA (㎡) = 0.0061 x height (cm) + 0.0128 x weight (kg) - 0.1529
5. Body mass index (BMI)
BMI(kg/㎡) = weight(kg)/[height^2(m)]
6. Rehydration formula (adults)
(1) Estimated based on the degree of water loss
Mild water loss is equivalent to 2-3% of body weight; moderate water loss is equivalent to 4%-6% of body weight, that is, 2400ml-3600ml; severe water loss is equivalent to 7%-14% of body weight, and more severe cases can reach More than 15%.
(2) Estimated based on weight loss
Fluid replacement volume (ml) = [original weight (kg) - current weight (kg)] x (30~40ml/kg)
(3) Based on hematocrit, suitable for estimating water loss in hypotonic water loss
Male: Fluid replacement volume (ml) = [(actual hematocrit-0.48)/0.48]xweight (kg)x200
Women: Fluid replacement volume (ml) = [(actual hematocrit-0.42)/0.42]xweight (kg)x200
(4) Calculated based on blood sodium concentration, suitable for hypertonic water loss
Male: Fluid replacement volume (ml) = 4 x current weight (kg) x [measured serum sodium (mmol/L)-142]
Women: Fluid replacement volume (ml) = 3 x current weight (kg) x [measured serum sodium (mmol/L)-142]
7. Potassium supplement formula
10% potassium chloride solution (mL) = (serum set value-serum actual measured value) x body weight (kg) x 0.3 / 1.34
Note: The daily physiological requirement for adults is: 10% chloride 60~70 mL
8. Standard body weight (IBW)
Male: IBW = 50 + 0.9 x (height - 150)
Female: IBW = 45.5 + 0.9 x (Height - 150)
9. GRACE ischemic risk assessment
The GRACE ischemic risk assessment formula takes into account multiple factors, including the patient's age, heart rate, systolic blood pressure, serum creatinine level, Killip grade, presence of prehospital cardiac arrest, ST segment depression, elevated cardiac enzymes, etc. The specific calculation method is relatively complex and usually requires the use of specialized scoring software or online tools.
10. Mean arterial pressure
Mean arterial pressure = diastolic blood pressure + 1/3 (systolic blood pressure - diastolic blood pressure)
How Does Cistanche Treat Kidney Disease?
Cistanche is a traditional Chinese herbal medicine used for centuries to treat various health conditions, including kidney disease. It is derived from the dried stems of Cistanche deserticola, a plant native to the deserts of China and Mongolia. The main active components of cistanche are phenylethanoid glycosides, echinacoside, and acteoside, which have been found to have beneficial effects on kidney health.
Kidney disease, also known as renal disease, refers to a condition in which the kidneys are not functioning properly. This can result in a buildup of waste products and toxins in the body, leading to various symptoms and complications. Cistanche may help treat kidney disease ase through several mechanisms.
Firstly, cistanche has been found to have diuretic properties, meaning it can increase urine production and help eliminate waste products from the body. This can help relieve the burden on the kidneys and prevent the buildup of toxins. By promoting diuresis, cistanche may also help Reduce high blood pressure, a common complication of kidney disease.
Moreover, cistanche has been shown to have antioxidant effects. Oxidative stress, caused by an imbalance between the production of free radicals and the body's antioxidant defenses, plays a key role in the progression of kidney disease. ies help neutralize free radicals and reduce Oxidative stress, thereby protecting the kidneys from damage. The phenylethanoid glycosides found in cistanche have been particularly effective in scavenging free radicals and inhibiting lipid peroxidation.
Additionally, cistanche has been found to have anti-inflammatory effects. Inflammation is another key factor in the development and progression of kidney disease. Cistanche's anti-inflammatory properties help reduce the production of pro-inflammatory cytokines and inhibit the activation of inflammation mandatory pathways, thus alleviating inflammation in the kidneys.
Furthermore, cistanche has been shown to have immunomodulatory effects. In kidney disease, the immune system can be dysregulated, leading to excessive inflammation and tissue damage. Cistanche helps regulate the immune response by modulating the production and activity of immune cells, such as T cells and macrophages. This immune regulation helps reduce inflammation and prevent further damage to the kidneys.
Moreover, cistanche has been found to improve renal function by promoting the regeneration of renal tubes with cells. Renal tubular epithelial cells play a crucial role in the filtration and reabsorption of waste products and electrolytes. In kidney disease, these cells can be damaged, leading to damaged renal function. Cistanche's ability to promote the regeneration of these cells helps restore proper renal function and improve overall kidney health.
In addition to these direct effects on the kidneys, cistanche has been found to have beneficial effects on other organs and systems in the body. This holistic approach to health is particularly important in kidney disease, as the condition often affects multiple organs and systems. che has been shown to have protective effects on the liver, heart, and blood vessels, which are commonly affected by kidney disease. By promoting the health of these organs, cistanche helps improve overall kidney function and prevent further complications.
In conclusion, cistanche is a traditional Chinese herbal medicine used for centuries to treat kidney disease. Its active components have diuretic, antioxidant, anti-inflammatory, immunomodulatory, and regenerative effects, which help improve renal function and protect the kidneys from further damage. , cistanche has beneficial effects on other organs and systems, making it a holistic approach to treating kidney disease.
