Creatinine 1.9 mg/dl means : causes, treatment, GFR calculation
In this article we discuss what a creatinine value of 1.9 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 1.9 is dangerous, good or bad.
Published Date : 2023-07-02T00:31:57.337Z
Updated Date : 2024-04-11T19:29:32.172+05:30
Table of Contents
What is Creatinine?
How is creatinine measured?
What does a creatinine of 1.9 mg/dl mean in men?
What does a creatinine of 1.9 mg/dl mean in women?
Is creatinine 1.9 dangerous?
What is the normal range and is a creatinine of 1.9 mg/dl normal?
What could cause a creatinine level of 1.9?
What other tests should be done if creatinine level is 1.9?
What is the relation between creatinine and kidney function?
Why do doctors ask for GFR if my creatinine level is 1.9?
What is my GFR if my creatinine level is 1.9?
References
Recommended Tests
What is Creatinine?
Serum creatinine is a substance that our bodies make as a result of a chemical called creatine phosphate found in our muscles. It is made at a steady pace, meaning the amount of serum creatinine in our blood remains fairly consistent. The level of serum creatinine depends on how much muscle we have - generally, men have more muscle than women, so their serum creatinine levels tend to be higher. On the other hand, during pregnancy, serum creatinine levels are usually lower. So, simply put, serum creatinine is a natural byproduct of muscle activity, and its amount in our body can vary based on factors like gender and pregnancy.1
How is creatinine measured?
A serum creatinine lab test is a simple blood test that helps doctors check how well your kidneys are functioning. Before the test, it's important to follow some pretest preparations, like avoiding certain medications and fasting for a few hours. During the test, a healthcare professional will draw a small amount of blood from your arm using a needle. The blood sample is then sent to a lab where they measure the concentration of creatinine, a waste product produced by muscles, in your blood. This measurement helps doctors determine if your kidneys are working properly or if there might be any underlying kidney problems.
What does a creatinine of 1.9 mg/dl mean in men?
A creatinine value of 1.9 mg/dl is considered mild, which means it is slightly higher than the normal range for women (0.73-1.18). This could be caused by taking certain medications, having dye used for a scan, or using herbal medicines or too many vitamins. It is important to have your creatinine levels checked regularly, about once a week, and it is recommended to consult a doctor.3,4
What does a creatinine of 1.9 mg/dl mean in women?
A creatinine value of 1.9 mg/dl, which is considered mild, could be caused by taking certain medications, getting dye for scans, or using herbal medicines or too many vitamins. It's important to regularly check your creatinine levels and talk to a doctor for advice.3,4
Is creatinine 1.9 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 1.9 in male across different ages
| Age Group | Is Creatinne of 1.9 dangerous? |
|---|---|
| 25yrs - 95 yrs | bad, needs attention, could be dangerous, Consult a doctor |
Table of danger posed by Creatinine 1.9 in female across different ages
| Age Group | Is Creatinne of 1.9 dangerous? |
|---|---|
| 25yrs - 36 yrs | bad, needs attention, could be dangerous, Consult a doctor |
| 36yrs - 95 yrs | very high - dangerous, Consult a doctor immediately |
What is the normal range and is a creatinine of 1.9 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 1.9 is considered abnormal.
What could cause a creatinine level of 1.9?
- Dehydration: Inadequate fluid intake can lead to increased creatinine levels as the kidneys retain more water.
- Chronic kidney disease: Impaired kidney function over a long period can result in elevated creatinine levels.
- Acute kidney injury: Sudden damage to the kidneys, often caused by conditions like severe infections or drug toxicity, can lead to elevated creatinine levels.
- Urinary tract obstruction: Blockage in the urinary system can cause a buildup of creatinine in the blood.
- Muscle disorders: Certain muscle diseases or injuries can cause higher creatinine levels as muscle breakdown releases creatinine into the bloodstream.
- High-protein diet: Consuming excessive amounts of protein can increase creatinine levels as it is a byproduct of protein metabolism.
- Certain medications: Some drugs, such as nonsteroidal anti-inflammatory drugs (NSAIDs) or certain antibiotics, can affect kidney function and lead to elevated creatinine levels.
- Diabetes: Uncontrolled diabetes can damage the kidneys, resulting in increased creatinine levels.
- High blood pressure: Chronic hypertension can lead to kidney damage and subsequent elevation of creatinine levels.
- Autoimmune diseases: Conditions like lupus or vasculitis can cause inflammation in the kidneys, affecting their ability to filter waste and leading to higher creatinine levels.
What other tests should be done if creatinine level is 1.9?
Serum Electrolytes
The Serum Electrolytes test is important because it measures the levels of essential minerals in the blood, such as sodium, potassium, and chloride, which play a crucial role in maintaining proper kidney function. Abnormal electrolyte levels can contribute to kidney dysfunction, and monitoring these levels can help identify any imbalances that may be affecting kidney health. In the case of a creatinine level of 1.9 mg/dl, the Serum Electrolytes test can provide valuable information about the patient's overall kidney function and assist in determining an appropriate treatment plan.
Blood Urea
The blood urea test is important because it measures the amount of urea nitrogen in the blood, which is a waste product produced by the liver during protein metabolism. Elevated levels of blood urea indicate poor kidney function or dehydration, which can lead to an increase in creatinine levels. Monitoring blood urea levels helps in diagnosing and managing kidney diseases and ensuring proper hydration.
Estimated GFR
The Estimated GFR (glomerular filtration rate) test is important for assessing kidney function because it helps determine the filtration rate of the kidneys, which indicates how well they are functioning. A creatinine level of 1.9 mg/dl suggests impaired kidney function, but the Estimated GFR test provides a more accurate estimate of the actual filtration rate, allowing for better monitoring and management of kidney health.
HBA1C
The HbA1c test is important in this case because it provides a measure of a person's average blood sugar levels over the past 2-3 months. It is particularly useful in monitoring and diagnosing diabetes, as elevated levels indicate poor blood sugar control. Given the creatinine level of 1.9 mg/dl, the HbA1c test can help assess the individual's long-term glucose management and guide appropriate treatment decisions.
LDH
The LDH test is important in this case because it helps determine if there is tissue damage or inflammation in the body. Elevated levels of LDH can indicate kidney damage, which may be contributing to the high creatinine level. Monitoring LDH can aid in diagnosing and managing the underlying condition causing the elevated creatinine levels.
Random Sugar
The Random Sugar test is important because it helps evaluate the blood glucose levels at any given time, providing information about a person's current blood sugar control. This is relevant in the case of a creatinine level of 1.9 mg/dl as elevated creatinine levels can be associated with kidney dysfunction, which can in turn affect blood sugar regulation. Monitoring random sugar levels can help assess the overall health and management of both kidney function and blood sugar control.
What is the relation between creatinine and kidney function?
Creatinine, a chemical generated within the body consistently, undergoes complete filtration by the kidney, exiting the system through urine. In the presence of kidney impairment caused by various factors, creatinine levels experience an elevation. Consequently, measuring creatinine levels proves to be an exceptionally valuable means of assessing kidney functionality.
Why do doctors ask for GFR if my creatinine level is 1.9?
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 1.9?
Estimated Glomerular Filtration Rate (GFR) for a creatinine value of 1.9
| Age in Years | Estimated Glomerular Filtration Rate (GFR) | GFR Grade |
|---|---|---|
| 18 yrs | Male : 46.4 mL/min/1.73 m2 Female : 34.43 mL/min/1.73 m2 | GFR Grade G3b : Moderately to Severely Decreased |
| 19 yrs | Male : 45.9 mL/min/1.73 m2 Female : 34.05 mL/min/1.73 m2 | GFR Grade G3b : Moderately to Severely Decreased |
| 20 yrs | Male : 45.42 mL/min/1.73 m2 Female : 33.7 mL/min/1.73 m2 | GFR Grade G3b : Moderately to Severely Decreased |
| 21 yrs | Male : 44.97 mL/min/1.73 m2 Female : 33.37 mL/min/1.73 m2 | GFR Grade G3b : Moderately to Severely Decreased |
| 22 yrs | Male : 44.55 mL/min/1.73 m2 Female : 33.06 mL/min/1.73 m2 | GFR Grade G3b : Moderately to Severely Decreased |
| 23 yrs | Male : 44.15 mL/min/1.73 m2 Female : 32.76 mL/min/1.73 m2 | GFR Grade G3b : Moderately to Severely Decreased |
| 24 yrs | Male : 43.77 mL/min/1.73 m2 Female : 32.48 mL/min/1.73 m2 | GFR Grade G3b : Moderately to Severely Decreased |
| 25 yrs | Male : 43.41 mL/min/1.73 m2 Female : 32.21 mL/min/1.73 m2 | GFR Grade G3b : Moderately to Severely Decreased |
| 26 yrs | Male : 43.06 mL/min/1.73 m2 Female : 31.95 mL/min/1.73 m2 | GFR Grade G3b : Moderately to Severely Decreased |
| 27 yrs | Male : 42.74 mL/min/1.73 m2 Female : 31.71 mL/min/1.73 m2 | GFR Grade G3b : Moderately to Severely Decreased |
| 28 yrs | Male : 42.42 mL/min/1.73 m2 Female : 31.48 mL/min/1.73 m2 | GFR Grade G3b : Moderately to Severely Decreased |
| 29 yrs | Male : 42.12 mL/min/1.73 m2 Female : 31.25 mL/min/1.73 m2 | GFR Grade G3b : Moderately to Severely Decreased |
| 30 yrs | Male : 41.83 mL/min/1.73 m2 Female : 31.04 mL/min/1.73 m2 | GFR Grade G3b : Moderately to Severely Decreased |
| 31 yrs | Male : 41.55 mL/min/1.73 m2 Female : 30.83 mL/min/1.73 m2 | GFR Grade G3b : Moderately to Severely Decreased |
| 32 yrs | Male : 41.29 mL/min/1.73 m2 Female : 30.63 mL/min/1.73 m2 | GFR Grade G3b : Moderately to Severely Decreased |
| 33 yrs | Male : 41.03 mL/min/1.73 m2 Female : 30.44 mL/min/1.73 m2 | GFR Grade G3b : Moderately to Severely Decreased |
| 34 yrs | Male : 40.78 mL/min/1.73 m2 Female : 30.26 mL/min/1.73 m2 | GFR Grade G3b : Moderately to Severely Decreased |
| 35 yrs | Male : 40.54 mL/min/1.73 m2 Female : 30.08 mL/min/1.73 m2 | GFR Grade G3b : Moderately to Severely Decreased |
| 36 yrs | Male : 40.31 mL/min/1.73 m2 Female : 29.91 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 37 yrs | Male : 40.09 mL/min/1.73 m2 Female : 29.75 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 38 yrs | Male : 39.87 mL/min/1.73 m2 Female : 29.58 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 39 yrs | Male : 39.66 mL/min/1.73 m2 Female : 29.43 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 40 yrs | Male : 39.46 mL/min/1.73 m2 Female : 29.28 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 41 yrs | Male : 39.26 mL/min/1.73 m2 Female : 29.13 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 42 yrs | Male : 39.07 mL/min/1.73 m2 Female : 28.99 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 43 yrs | Male : 38.88 mL/min/1.73 m2 Female : 28.85 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 44 yrs | Male : 38.7 mL/min/1.73 m2 Female : 28.72 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 45 yrs | Male : 38.53 mL/min/1.73 m2 Female : 28.59 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 46 yrs | Male : 38.35 mL/min/1.73 m2 Female : 28.46 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 47 yrs | Male : 38.19 mL/min/1.73 m2 Female : 28.34 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 48 yrs | Male : 38.02 mL/min/1.73 m2 Female : 28.21 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 49 yrs | Male : 37.87 mL/min/1.73 m2 Female : 28.1 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 50 yrs | Male : 37.71 mL/min/1.73 m2 Female : 27.98 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 51 yrs | Male : 37.56 mL/min/1.73 m2 Female : 27.87 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 52 yrs | Male : 37.41 mL/min/1.73 m2 Female : 27.76 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 53 yrs | Male : 37.27 mL/min/1.73 m2 Female : 27.65 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 54 yrs | Male : 37.13 mL/min/1.73 m2 Female : 27.55 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 55 yrs | Male : 36.99 mL/min/1.73 m2 Female : 27.45 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 56 yrs | Male : 36.85 mL/min/1.73 m2 Female : 27.35 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 57 yrs | Male : 36.72 mL/min/1.73 m2 Female : 27.25 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 58 yrs | Male : 36.59 mL/min/1.73 m2 Female : 27.15 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 59 yrs | Male : 36.46 mL/min/1.73 m2 Female : 27.06 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 60 yrs | Male : 36.34 mL/min/1.73 m2 Female : 26.96 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 61 yrs | Male : 36.22 mL/min/1.73 m2 Female : 26.87 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 62 yrs | Male : 36.1 mL/min/1.73 m2 Female : 26.79 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 63 yrs | Male : 35.98 mL/min/1.73 m2 Female : 26.7 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 64 yrs | Male : 35.87 mL/min/1.73 m2 Female : 26.61 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 65 yrs | Male : 35.75 mL/min/1.73 m2 Female : 26.53 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 66 yrs | Male : 35.64 mL/min/1.73 m2 Female : 26.45 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 67 yrs | Male : 35.54 mL/min/1.73 m2 Female : 26.37 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 68 yrs | Male : 35.43 mL/min/1.73 m2 Female : 26.29 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 69 yrs | Male : 35.32 mL/min/1.73 m2 Female : 26.21 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 70 yrs | Male : 35.22 mL/min/1.73 m2 Female : 26.13 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 71 yrs | Male : 35.12 mL/min/1.73 m2 Female : 26.06 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 72 yrs | Male : 35.02 mL/min/1.73 m2 Female : 25.98 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 73 yrs | Male : 34.92 mL/min/1.73 m2 Female : 25.91 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 74 yrs | Male : 34.83 mL/min/1.73 m2 Female : 25.84 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 75 yrs | Male : 34.73 mL/min/1.73 m2 Female : 25.77 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 76 yrs | Male : 34.64 mL/min/1.73 m2 Female : 25.7 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 77 yrs | Male : 34.55 mL/min/1.73 m2 Female : 25.63 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 78 yrs | Male : 34.46 mL/min/1.73 m2 Female : 25.57 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 79 yrs | Male : 34.37 mL/min/1.73 m2 Female : 25.5 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 80 yrs | Male : 34.28 mL/min/1.73 m2 Female : 25.44 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 81 yrs | Male : 34.19 mL/min/1.73 m2 Female : 25.37 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 82 yrs | Male : 34.11 mL/min/1.73 m2 Female : 25.31 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 83 yrs | Male : 34.02 mL/min/1.73 m2 Female : 25.25 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 84 yrs | Male : 33.94 mL/min/1.73 m2 Female : 25.18 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 85 yrs | Male : 33.86 mL/min/1.73 m2 Female : 25.12 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 86 yrs | Male : 33.78 mL/min/1.73 m2 Female : 25.06 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 87 yrs | Male : 33.7 mL/min/1.73 m2 Female : 25.01 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 88 yrs | Male : 33.62 mL/min/1.73 m2 Female : 24.95 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 89 yrs | Male : 33.55 mL/min/1.73 m2 Female : 24.89 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 90 yrs | Male : 33.47 mL/min/1.73 m2 Female : 24.83 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 91 yrs | Male : 33.39 mL/min/1.73 m2 Female : 24.78 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 92 yrs | Male : 33.32 mL/min/1.73 m2 Female : 24.72 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 93 yrs | Male : 33.25 mL/min/1.73 m2 Female : 24.67 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 94 yrs | Male : 33.18 mL/min/1.73 m2 Female : 24.62 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
| 95 yrs | Male : 33.1 mL/min/1.73 m2 Female : 24.56 mL/min/1.73 m2 | GFR Grade G4 : Severely Decreased |
References
Authorotative articles on serum creatinine
Recommended Tests
The following tests are recommeded as additional investigations for a creatinine of 1.9
HBA1C
Visit HBA1C Test to know more
Electrolytes
Visit Electrolytes to know more
Kidney Profile
Visit Kidney Profile to know more
