Creatinine 7.7 mg/dl means : causes, treatment, GFR calculation
In this article we discuss what a creatinine value of 7.7 mg /dl means, what are its causes and how to calculate your estimated Glomerular Filtration Rate based on the GFR, as well its implications on your kidney health. We also answer the question about whether a Creatinine level of 7.7 is dangerous, good or bad.Published Date : 2023-07-13T00:31:57.337Z
Updated Date : 2024-04-11T19:29:34.025+05:30
Table of Contents
What is Creatinine?
How is creatinine measured?
What does a creatinine of 7.7 mg/dl mean in men?
What does a creatinine of 7.7 mg/dl mean in women?
Is creatinine 7.7 dangerous?
What is the normal range and is a creatinine of 7.7 mg/dl normal?
What could cause a creatinine level of 7.7?
What other tests should be done if creatinine level is 7.7?
What is the relation between creatinine and kidney function?
Why do doctors ask for GFR if my creatinine level is 7.7?
What is my GFR if my creatinine level is 7.7?
References
Recommended Tests
What is Creatinine?
Serum creatinine is a substance that our body makes as a result of a chemical called creatine phosphate found in our muscles. It is made at a steady pace, meaning it is produced consistently in our bodies. The amount of serum creatinine in our blood is influenced by how much muscle we have - generally, men tend to have more than women. Interestingly, during pregnancy, the level of serum creatinine is usually lower. So, this substance can help doctors measure how well our kidneys are functioning, as it gives them an idea of our muscle mass and overall health.1
How is creatinine measured?
A serum creatinine lab test is a simple blood test that helps doctors determine how well the kidneys are functioning. Before the test, it is important to avoid eating or drinking anything other than water for a few hours. This ensures accurate results. During the test, a healthcare professional will draw a small amount of blood from a vein in your arm using a needle. The blood sample is then sent to a laboratory, where it is analyzed. In the lab, the sample is processed to measure the concentration of creatinine, which is a waste product produced by muscles. By measuring the level of creatinine in the blood, doctors can assess how well your kidneys are clearing this waste product. This information is crucial in diagnosing and monitoring kidney problems. The results of the serum creatinine lab test provide important insights into your kidney health and help doctors make informed decisions about your treatment.
What does a creatinine of 7.7 mg/dl mean in women?
The normal range for creatinine in women is 0.55-1.02. If your creatinine level is 7.7 mg/dl, it is considered very dangerous. It is recommended that you go to the hospital right away and you may need dialysis. It is important to seek medical help and not try to treat yourself.3,4
Is creatinine 7.7 dangerous?
A creatinine of may be dangerous depending on your gender and age. The tables below highlight the likelihood of a creatinine of being dangerous for different age groups in both men and women. We provide the following tables, based on the estimated GFR corresponding to the value of creatinine.
Table of danger posed by Creatinine 7.7 in male across different ages
| Age Group | Is Creatinne of 7.7 dangerous? |
|---|---|
| 25yrs - 95 yrs | very dangerous, Get immediate medical advice and treatment. |
Table of danger posed by Creatinine 7.7 in female across different ages
| Age Group | Is Creatinne of 7.7 dangerous? |
|---|---|
| 25yrs - 95 yrs | very dangerous, Get immediate medical advice and treatment. |
What is the normal range and is a creatinine of 7.7 mg/dl normal?
The normal range for creatinine in men is 0.73 to 1.18 mg/dl, and in women it is 0.55 to 1.02 mg/dl2. Based on these ranges, a creatinine level of 7.7 is considered abnormal.
What could cause a creatinine level of 7.7?
- Acute kidney injury: A sudden loss of kidney function, often due to dehydration, severe infection, or medication toxicity.
- Chronic kidney disease: A progressive condition where the kidneys gradually lose their ability to function properly over time.
- Urinary tract obstruction: Blockage in the urinary system, such as kidney stones or tumors, preventing normal urine flow.
- Glomerulonephritis: Inflammation of the kidney's filtration units, affecting their ability to remove waste and excess fluids.
- Polycystic kidney disease: A genetic disorder causing the growth of numerous cysts in the kidneys, impairing their function.
- Renal artery stenosis: Narrowing of the arteries that supply blood to the kidneys, reducing their ability to filter waste.
- Interstitial nephritis: Inflammation of the kidney's tubules and surrounding structures, often caused by medications or infections.
- Diabetic nephropathy: Kidney damage resulting from long-standing diabetes, leading to impaired filtration.
- Multiple myeloma: A type of blood cancer that can affect the kidneys, leading to increased creatinine levels.
- Liver disease: Impaired liver function can cause elevated creatinine levels as the liver plays a role in creatinine metabolism.
What other tests should be done if creatinine level is 7.7?
Serum Electrolytes
The Serum Electrolytes test is important in this case because it helps evaluate the balance of essential minerals in the body, such as sodium, potassium, and chloride, which can be affected by kidney dysfunction. Abnormal levels of electrolytes can further indicate the severity of kidney impairment and aid in determining appropriate treatment options. Monitoring electrolyte levels is crucial for managing the patient's overall health and preventing complications.
Blood Urea
The Blood Urea test is important because it measures the amount of urea nitrogen in the blood, which indicates how well the kidneys are functioning. In the case of a creatinine level of 7.7 mg/dl, a high Blood Urea level would suggest impaired kidney function, confirming the need for further evaluation and intervention. Monitoring Blood Urea levels can help assess kidney health and guide treatment decisions for patients with high creatinine levels.
Estimated GFR
The estimated GFR (glomerular filtration rate) test is important because it provides an estimate of how well the kidneys are functioning in filtering waste from the blood. A creatinine level of 7.7 mg/dl indicates severe kidney impairment, but the estimated GFR can provide a more accurate assessment of kidney function. This information is crucial for determining the appropriate treatment and management plan for the patient.
HBA1C
The HbA1c test is important for individuals with a creatinine level of 7.7 mg/dl because it measures the average blood glucose levels over the past 2-3 months. It helps in assessing long-term blood sugar control, which is crucial for managing diabetes and preventing complications. Monitoring HbA1c levels can guide treatment decisions and evaluate the effectiveness of diabetes management strategies.
LDH
The LDH (lactate dehydrogenase) test is important in this case because a high creatinine level suggests kidney dysfunction, and LDH can help determine if the elevated levels are due to kidney damage or other factors. LDH is an enzyme found in various tissues, including the kidneys, and elevated LDH levels can indicate kidney injury or disease. Therefore, the LDH test can provide valuable information for diagnosing and monitoring the underlying cause of the high creatinine level.
Random Sugar
The Random Sugar test is important in this case because it can help determine if the high creatinine level is due to uncontrolled diabetes. Elevated creatinine levels can be a sign of kidney dysfunction, but diabetes can also lead to kidney damage. The Random Sugar test can help identify if diabetes is a contributing factor to the high creatinine level.
What is the relation between creatinine and kidney function?
Creatinine, a chemical fabricated within the body at a consistent pace, undergoes full filtration in the urine by the kidney. In cases where kidney performance is compromised for various causes, creatinine levels ascend. Consequently, creatinine serves as an invaluable means to assess kidney functionality.
Why do doctors ask for GFR if my creatinine level is 7.7?
Glomerular Filtration Rate or GFR is the rate at which a given volume of blood is cleared of any substance every unit of time. This basically is a measure of the filtration capacity of the kidney. Even a small reduction in GFR can have consequences in patients who already have comorbidities. The GFR is calculated from the level of creatinine in the blood using a variety of equations like the MDRD equation given as follows : GFR (mL/min/1.73 m2) = 175 × (Scr)-1.154 × (Age)-0.203 × (0.742 if female) × (1.212 if African American). Using this formula the value of GFR can be calculated just by knowing the level of creatinine in the blood.
What is my GFR if my creatinine level is 7.7?
Estimated Glomerular Filtration Rate (GFR) for a creatinine value of 7.7
| Age in Years | Estimated Glomerular Filtration Rate (GFR) | GFR Grade |
|---|---|---|
| 18 yrs | Male : 9.23 mL/min/1.73 m2 Female : 6.85 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 19 yrs | Male : 9.13 mL/min/1.73 m2 Female : 6.77 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 20 yrs | Male : 9.03 mL/min/1.73 m2 Female : 6.7 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 21 yrs | Male : 8.95 mL/min/1.73 m2 Female : 6.64 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 22 yrs | Male : 8.86 mL/min/1.73 m2 Female : 6.58 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 23 yrs | Male : 8.78 mL/min/1.73 m2 Female : 6.52 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 24 yrs | Male : 8.71 mL/min/1.73 m2 Female : 6.46 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 25 yrs | Male : 8.63 mL/min/1.73 m2 Female : 6.41 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 26 yrs | Male : 8.57 mL/min/1.73 m2 Female : 6.36 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 27 yrs | Male : 8.5 mL/min/1.73 m2 Female : 6.31 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 28 yrs | Male : 8.44 mL/min/1.73 m2 Female : 6.26 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 29 yrs | Male : 8.38 mL/min/1.73 m2 Female : 6.22 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 30 yrs | Male : 8.32 mL/min/1.73 m2 Female : 6.17 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 31 yrs | Male : 8.27 mL/min/1.73 m2 Female : 6.13 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 32 yrs | Male : 8.21 mL/min/1.73 m2 Female : 6.09 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 33 yrs | Male : 8.16 mL/min/1.73 m2 Female : 6.06 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 34 yrs | Male : 8.11 mL/min/1.73 m2 Female : 6.02 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 35 yrs | Male : 8.06 mL/min/1.73 m2 Female : 5.98 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 36 yrs | Male : 8.02 mL/min/1.73 m2 Female : 5.95 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 37 yrs | Male : 7.97 mL/min/1.73 m2 Female : 5.92 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 38 yrs | Male : 7.93 mL/min/1.73 m2 Female : 5.88 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 39 yrs | Male : 7.89 mL/min/1.73 m2 Female : 5.85 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 40 yrs | Male : 7.85 mL/min/1.73 m2 Female : 5.82 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 41 yrs | Male : 7.81 mL/min/1.73 m2 Female : 5.79 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 42 yrs | Male : 7.77 mL/min/1.73 m2 Female : 5.77 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 43 yrs | Male : 7.73 mL/min/1.73 m2 Female : 5.74 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 44 yrs | Male : 7.7 mL/min/1.73 m2 Female : 5.71 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 45 yrs | Male : 7.66 mL/min/1.73 m2 Female : 5.69 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 46 yrs | Male : 7.63 mL/min/1.73 m2 Female : 5.66 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 47 yrs | Male : 7.6 mL/min/1.73 m2 Female : 5.64 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 48 yrs | Male : 7.56 mL/min/1.73 m2 Female : 5.61 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 49 yrs | Male : 7.53 mL/min/1.73 m2 Female : 5.59 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 50 yrs | Male : 7.5 mL/min/1.73 m2 Female : 5.57 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 51 yrs | Male : 7.47 mL/min/1.73 m2 Female : 5.54 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 52 yrs | Male : 7.44 mL/min/1.73 m2 Female : 5.52 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 53 yrs | Male : 7.41 mL/min/1.73 m2 Female : 5.5 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 54 yrs | Male : 7.39 mL/min/1.73 m2 Female : 5.48 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 55 yrs | Male : 7.36 mL/min/1.73 m2 Female : 5.46 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 56 yrs | Male : 7.33 mL/min/1.73 m2 Female : 5.44 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 57 yrs | Male : 7.3 mL/min/1.73 m2 Female : 5.42 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 58 yrs | Male : 7.28 mL/min/1.73 m2 Female : 5.4 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 59 yrs | Male : 7.25 mL/min/1.73 m2 Female : 5.38 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 60 yrs | Male : 7.23 mL/min/1.73 m2 Female : 5.36 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 61 yrs | Male : 7.2 mL/min/1.73 m2 Female : 5.35 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 62 yrs | Male : 7.18 mL/min/1.73 m2 Female : 5.33 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 63 yrs | Male : 7.16 mL/min/1.73 m2 Female : 5.31 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 64 yrs | Male : 7.13 mL/min/1.73 m2 Female : 5.29 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 65 yrs | Male : 7.11 mL/min/1.73 m2 Female : 5.28 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 66 yrs | Male : 7.09 mL/min/1.73 m2 Female : 5.26 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 67 yrs | Male : 7.07 mL/min/1.73 m2 Female : 5.24 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 68 yrs | Male : 7.05 mL/min/1.73 m2 Female : 5.23 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 69 yrs | Male : 7.03 mL/min/1.73 m2 Female : 5.21 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 70 yrs | Male : 7.01 mL/min/1.73 m2 Female : 5.2 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 71 yrs | Male : 6.99 mL/min/1.73 m2 Female : 5.18 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 72 yrs | Male : 6.97 mL/min/1.73 m2 Female : 5.17 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 73 yrs | Male : 6.95 mL/min/1.73 m2 Female : 5.15 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 74 yrs | Male : 6.93 mL/min/1.73 m2 Female : 5.14 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 75 yrs | Male : 6.91 mL/min/1.73 m2 Female : 5.13 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 76 yrs | Male : 6.89 mL/min/1.73 m2 Female : 5.11 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 77 yrs | Male : 6.87 mL/min/1.73 m2 Female : 5.1 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 78 yrs | Male : 6.85 mL/min/1.73 m2 Female : 5.09 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 79 yrs | Male : 6.84 mL/min/1.73 m2 Female : 5.07 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 80 yrs | Male : 6.82 mL/min/1.73 m2 Female : 5.06 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 81 yrs | Male : 6.8 mL/min/1.73 m2 Female : 5.05 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 82 yrs | Male : 6.78 mL/min/1.73 m2 Female : 5.03 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 83 yrs | Male : 6.77 mL/min/1.73 m2 Female : 5.02 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 84 yrs | Male : 6.75 mL/min/1.73 m2 Female : 5.01 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 85 yrs | Male : 6.74 mL/min/1.73 m2 Female : 5.0 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 86 yrs | Male : 6.72 mL/min/1.73 m2 Female : 4.99 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 87 yrs | Male : 6.7 mL/min/1.73 m2 Female : 4.97 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 88 yrs | Male : 6.69 mL/min/1.73 m2 Female : 4.96 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 89 yrs | Male : 6.67 mL/min/1.73 m2 Female : 4.95 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 90 yrs | Male : 6.66 mL/min/1.73 m2 Female : 4.94 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 91 yrs | Male : 6.64 mL/min/1.73 m2 Female : 4.93 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 92 yrs | Male : 6.63 mL/min/1.73 m2 Female : 4.92 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 93 yrs | Male : 6.61 mL/min/1.73 m2 Female : 4.91 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 94 yrs | Male : 6.6 mL/min/1.73 m2 Female : 4.9 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
| 95 yrs | Male : 6.58 mL/min/1.73 m2 Female : 4.89 mL/min/1.73 m2 | GFR Grade G5 : Kidney Failure |
References
Authorotative articles on serum creatinine
Recommended Tests
The following tests are recommeded as additional investigations for a creatinine of 7.7
HBA1C
Visit HBA1C Test to know more
Electrolytes
Visit Electrolytes to know more
Kidney Profile
Visit Kidney Profile to know more
Reviewed By - Dr.Bhargav Raut
Dr.Bhargav Raut is a qualified Pathologist, with over 5 years of experience in the field
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