Main article: Kidney (renal) function
Laboratory tests can compliment symptom reports to provide a more complete clinical picture of patients' progress on the Marshall ProtocolA curative medical treatment for chronic inflammatory disease. Based on the Marshall Pathogenesis. (MP).
Patients who progress on the MP typically experience immunopathologyA temporary increase in disease symptoms experienced by Marshall Protocol patients that results from the release of cytokines and endotoxins as disease-causing bacteria are killed.. Immunopathology is caused largely by cytokinesAny of various protein molecules secreted by cells of the immune system that serve to regulate the immune system. generated by the immune response and endotoxins released from dying bacteria. Occasionally, immunopathology will consist of an abnormal lab value such as elevated creatinine, elevated liver enzymes, or low white blood count. This is due to the occurrence of subclinical bacterial inflammationThe complex biological response of vascular tissues to harmful stimuli such as pathogens or damaged cells. It is a protective attempt by the organism to remove the injurious stimuli as well as initiate the healing process for the tissue. that has been revealed by olmesartanMedication taken regularly by patients on the Marshall Protocol for its ability to activate the Vitamin D Receptor. Also known by the trade name Benicar. 's (Benicar) activation of the immune system.
The levels of the two most important vitamin D metabolites, 25-DThe vitamin D metabolite widely (and erroneously) considered best indicator of vitamin D "deficiency." Inactivates the Vitamin D Nuclear Receptor. Produced by hydroxylation of vitamin D3 in the liver. and 1,25-DPrimary biologically active vitamin D hormone. Activates the vitamin D nuclear receptor. Produced by hydroxylation of 25-D. Also known as 1,25-dihydroxycholecalciferol, 1,25-hydroxyvitamin D and calcitirol., can be interpreted using the Vitamin D Metabolite Calculator. A periodic assessment of a patient's serum 25-D level, which is inversely correlated with immune function, is strongly recommended – especially as it declines below 20 ng/ml. Testing 1,25-D as a measure of inflammation is only useful before taking olmesartan.
Baseline inflammatory marker tests such as a complete blood count (CBC) along with a comprehensive metabolic panel (CMP) should also be ordered prior to introducing olmesartan to provide the best possible measure of chronic inflammation in the patient prior to treatment.
Under many circumstances, some laboratory tests can be considered non-essential. Patient and doctor should discuss the decision to perform these tests based on the individual patient's clinical picture and any economic concerns. Every test should be interpreted by the physician in the relevant clinical context.
Short of trying the Marshall Protocol itself (i.e. a therapeutic probeA brief trial of the Marshall Protocol to see if it will generate an immunopathological response. The "gold standard" for testing whether a patient is a good candidate for the MP.), the most valid way to determine if the MP is applicable to a patient is by measuring serum levels of two key vitamin D metabolites: 25-D and 1,25-D. 25-D is a measure of innate immune function with higher levels suggesting active immunosuppression. 1,25-D is a measure of inflammation.
Contextual interpretation of a patient's 25-D and 1,25-D results are available using the vitamin D metabolite calculator. When testing the vitamin D metabolites, all relevant instructions, including the freezing of samples, should be closely followed.
It is also possible to test 25-D at home with a home test kit.
Main article: Kidney (renal) function
Related article: Olmesartan (Benicar) and kidney disease
Most patients on the MP experience temporary but well-defined increases in various markers of disease state and inflammationThe complex biological response of vascular tissues to harmful stimuli such as pathogens or damaged cells. It is a protective attempt by the organism to remove the injurious stimuli as well as initiate the healing process for the tissue., consistent with an immunopathological response. Results of blood tests for kidney function can generate considerable angst for Marshall ProtocolA curative medical treatment for chronic inflammatory disease. Based on the Marshall Pathogenesis. patients and their medical providers. Out of genuine concern for their patients, some physicians consider withholding prescription of olmesartanMedication taken regularly by patients on the Marshall Protocol for its ability to activate the Vitamin D Receptor. Also known by the trade name Benicar. . Experiences on the MP show that this concern may be mostly unfounded. And that the aberrant test values are to be expected from the nature of the MP treatment.
Doctors may want to assess kidney function by testing creatinine clearance test or BUN and measure other indicators specific to each patient for a baseline and retest as appropriate. Due to immunopathologyA temporary increase in disease symptoms experienced by Marshall Protocol patients that results from the release of cytokines and endotoxins as disease-causing bacteria are killed., lab these values may become temporarily abnormal until the inflammation resolves.
Patients should remember they are the most important member of their health care team. Making sure you know what is in your medical records means that they are able to follow-up on questions and in some cases, verify accuracy. A doctor's office personnel can read you the exact numbers with measurements over the phone but patients should get a printed copy of all lab results.
Patients may need to sign a release of information form. Call the clinic's “Release of Information Office” or Medical Records to find out what their procedure is to obtain medical records. A patient should be able to do this all via the phone and mail. Once a signed release form is on file, patients can often just call them and have them mail you copies of the doctor's clinic note and test results after each visit.
It is best to always ask for copies of your lab reports, x-rays reports, clinic notes, etc. A proactive patient knows exactly what is in his/her medical record.
Patients should be wary of excessive testing and procedures.
In the face of uncertainty and ambiguity, a clinician's natural response might be to order a battery of tests. After all, the more information clinicians obtain, the more confidence they have in the validity of their diagnoses, even when such confidence may not be justified on the basis of the information obtained.
In his paper, “Our stubborn quest for diagnostic certainty: a cause of excessive testing,” JP Kassirer writes:
Absolute certainty in diagnosis is unattainable, no matter how much information we gather, how many observations we make, or how many tests we perform. Our task is not to attain certainty, but rather to reduce the level of diagnostic uncertainty enough to make optimal therapeutic decisions…. We continue to test excessively, partly because of our discomfort with uncertainty.
Jerome Kassirer, MD 3)
In practice, as one approaches diagnostic certainty the useful information returned by diagnostic tests and observations approaches zero.4)
A 2011 article in the Daily Beast showed how some common tests and procedures may do more harm than good.