Rft test

KFT Test or Kidney Function Test also commonly referred to as Renal Function Test or RFT Test (KFT/RFT Test) is a profile of biochemistry blood tests that are useful to assess the renal function. KFT test is also commonly known as Renal Function Test, RFT Test, Kidney Profile or Kidney Panel. At HOD, the KFT Test includes several parameters such as Creatinine, Potassium, Phosphorous, Uric Acid, Chloride, Sodium, Blood Urea, Blood Urea Nitrogen, and Calcium. The function of healthy kidneys in a human body is to remove waste products and excess fluid from the body.

Remote field testing ( RFT) is a method of remote field eddy current testing ( RFEC or RFET). remote field electromagnetic technique, although a The basic RFT probe consists of an exciter coil (also known as a transmit or send coil) which sends a signal to the detector (or receive coil). The exciter coil is pumped with an AC current and emits a magnetic field. The field travels outwards from the exciter coil, through the pipe wall, and along the pipe. The detector is placed inside the pipe two to three pipe diameters away from the exciter and detects the magnetic field that has travelled back in from the outside of the pipe wall (for a total of two through-wall transits). In areas of metal loss, the field arrives at the detector with a faster travel time (greater phase) and greater signal strength (amplitude) due to the reduced path through the steel. Hence the dominant mechanism of RFT is through-transmission. Main features [ ] • commonly applied to examination of boilers, heat exchangers, cast iron pipes, and pipelines. • no need for direct contact with the pipe wall • probe travel speed around 30cm/s (1 foot per second), usually slower in pipes greater than 3inch diameter. • less sensitive to probe wobble than conventional eddy current testing (its sister technology for nonferromagnetic materials) • because the field travels on the outside of the pipe, RFT shows reduced accuracy and sensitivity at conductive and magnetic objects on or near the outside of the pipe, such ...

Figure 1 Formation pressure is measured by the formation sampler when it is extended from the tool to contact the formation. The Differences between RFTs and DSTs [ ] An RFT has several important advantages for formation pressure measurement over a DST. The table below lists some considerations. Consideration RFTs DSTs Time to take one measurement Less than 5 minutes for permeable formations More than 90 minutes Drilling delay to run test About one logging run (wireline conveyed) About equal to two trips with drillstring Sampling interval Small Several feet or more; generally tests multiple flow units Samples per run Many Few Expense per test Small Large Purpose of tool Pressure measurement Fluid recovery and pressure Survey problems • Getting good seat to measure pressure • Screen plugging with material in drilling mud • Packer failure • Depth determination Fractured reservoir May be unreliable Good if fractures intersect wellbore Layered reservoir Not representative Good if many layers are included in tested interval Skin damage Can be major error Can be measured and corrected for Example: comparing RFT to DST [ ] Figure 2 Plot of reservoir pressure vs. depth from a low- DST data in this example is very difficult because data are from a low-permeability chalk reservoir. Reliable pressures are difficult to obtain in low-permeability reservoirs with DSTs. Extrapolated DST shut-in pressures from a partial buildup may not reflect actual fluid pressures. As rock quality incre...

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Table of Contents • • • • • • • • • • Introduction • The kidney (renal) function can be assessed through a series of tests known as renal function tests (RFT). In order to ascertain the kidneys’ current state of health, the tests measure blood levels of a variety of substances, including proteins, several minerals, electrolytes, and glucose (sugar). • Waste products can build up in the blood and fluid levels can rise to dangerous levels if the kidneys aren’t working right, causing damage to the body or a potentially fatal situation. Damage to the kidneys can be caused by a variety of conditions and diseases. Diabetes and Indication • Assessment of renal function can be done for a variety of reasons, including acute emergencies and long-term conditions. • The primary purpose of renal function tests is to identify the renal disease, decide on the best course of treatment for the patient, and stop further decline in renal function. • In patients whose renal disease has been identified, additional indications include monitoring the progression of renal disease to ensure that optimal management occurs and to monitor intervention response. • Components of RFT In clinical practice, the most useful tests for evaluating renal function are those that look for proteinuria (albuminuria) and estimate the glomerular filtration rate (GFR). Glomerular Function- Clearance Test • The kidneys contain about one million tiny nephrons, which filter blood. Each nephron’s blood is continuously fi...

How it Works RFT probes use one or several transmitter coils positioned two tube diameters apart from the receiver coil. The magnetic field created by the transmitter coil travels through and out of the tube wall, radially and axially, towards the receiver. The magnetic field must travel through the tube wall again to reach the receiver. This is called through-transmission and is what defines RFT. Through-transmission allows external and internal defects to be detected with equal sensitivity. Two coupling paths exist between the transmitters and receivers. The direct path, inside the tube, is rapidly attenuated by circumferential eddy currents induced in the tube’s wall. The indirect coupling path originates in the transmitter’s magnetic field that diffuses radially outward through the wall. At the outer wall, the field spreads rapidly along the tube with little attenuation and re-diffuse back through the pipe wall and are the dominant field inside the tube at the receiver. Anomalies anywhere in the indirect path cause changes in the magnitude and phase of the received signal, and can therefore be used to detect defects. Ask an Expert

Order Code Order Code Name Order Loinc Result Code Result Code Name UofM Result LOINC 322777 Renal Panel (10) 24362-6 001032 Glucose mg/dL 2345-7 322777 Renal Panel (10) 24362-6 001040 BUN mg/dL 3094-0 322777 Renal Panel (10) 24362-6 001370 Creatinine mg/dL 2160-0 322777 Renal Panel (10) 24362-6 011577 BUN/Creatinine Ratio 3097-3 322777 Renal Panel (10) 24362-6 001198 Sodium mmol/L 2951-2 322777 Renal Panel (10) 24362-6 001180 Potassium mmol/L 2823-3 322777 Renal Panel (10) 24362-6 001206 Chloride mmol/L 2075-0 322777 Renal Panel (10) 24362-6 001578 Carbon Dioxide, Total mmol/L 2028-9 322777 Renal Panel (10) 24362-6 001016 Calcium mg/dL 17861-6 322777 Renal Panel (10) 24362-6 001024 Phosphorus mg/dL 2777-1 322777 Renal Panel (10) 24362-6 001081 Albumin g/dL 1751-7 322777 Renal Panel (10) 24362-6 100779 eGFR mL/min/1.73 98979-8

Overview What are kidney function tests? Kidney function tests are urine or blood tests that evaluate how well your kidneys are working. Most of these tests measure glomerular filtration rate (GFR). GFR assesses how efficiently your kidneys clear waste from your system. What do your kidneys do? Your kidneys are part of your • Hormones that maintain • Red blood cells, which carry oxygen throughout your body. • Vitamin D, which maintains bone and muscle health. Why might I need a kidney function test? Some conditions, such as You may also need a kidney function test if you have symptoms that indicate possible kidney problems. These symptoms might include: • Blood in your urine ( • • • Problems with starting to pee. What are the types of kidney function tests? Your healthcare provider may order one or a few different types of kidney function tests. You may have blood tests for kidney function, such as: • Blood urea nitrogen (BUN) measures nitrogen (made from protein breakdown) in your blood. • Estimated GFR (eGFR) calculates filtration rates based on your protein levels, age, gender, size and race. • Serum creatinine looks for the buildup of creatinine, a waste product from muscle tissue breakdown. Your healthcare provider may also use 24-hour urine tests, including: • Microalbuminuria looks for a specific protein called albumin. • Urinalysis evaluates your urine for blood, proteins and function. Test Details What happens during a kidney urine test? You complete 24-hour urine...