Topic

Clinical trial

Techniques for detecting, quantifying and localizing antigens and antibodies — ELISA, Western blotting, immunohistochemistry and flow cytometry. Below are the protocols, FAQs and technical articles in our knowledge base tagged with this topic.

140 resources · protocols, FAQs & articles
protocol

ABO blood typing test

Master the principle and technique of ABO blood group determination, this experiment source Mudanjiang Medical College

Updated Dec 202412 min read✓ Reviewed
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Polygel cross-matching assay

Erythrocytes carry a large negative charge on their surface to avoid spontaneous agglutination. When erythrocytes are suspended in electrolytes, cations are att

Updated Dec 202412 min read✓ Reviewed
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Rh blood group cross-matching test

To check whether the blood of the recipient or donor contains antigens and antibodies that are incompatible with the Rh blood group, this experiment is derived

Updated Dec 202412 min read✓ Reviewed
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Hematology Analyzer Counting Method Experiment

A method of blood cell counting and volumetric determination based on the detection of changes in electrical resistance induced by leukocytes suspended in an el

Updated Dec 202412 min read✓ Reviewed
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Erythrocyte morphology test

Knowledge of normal erythrocyte diameter size, size changes, morphological changes

Updated Dec 202412 min read✓ Reviewed
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Erythrocyte specific volume assay

EDTAX2 anticoagulated blood under certain conditions, centrifugal precipitation, and thus measured the percentage of its red blood cells in the volume of whole

Updated Dec 202412 min read✓ Reviewed
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Eosinophilic spot-colored erythrocyte counting assay

Dot-colored red blood cells is a kind of more naive red blood cells, the cells contain hemoglobin, but also contains basophilic substances, the alkaline dye sta

Updated Dec 202412 min read✓ Reviewed
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Clot regression test

Knowledge of the principles of the clot regression test and observation of the results

Updated Dec 202412 min read✓ Reviewed
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Blood specimen collection experiments

Blood collection site: WHO recommends that peripheral blood should be taken from the inside of the tip of the middle finger or ring finger. In some places in Ch

Updated Dec 202412 min read✓ Reviewed
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ABO blood group cross-matching test

Check whether there are incompatible antigens and antibodies in the donor and recipient blood. This experiment is derived from the clinical experiment guide of

Updated Dec 202412 min read✓ Reviewed
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Coagulation time test experiment

Principles and Techniques of Coagulation Time Measurement from Mudanjiang Medical College

Updated Dec 202412 min read✓ Reviewed
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Erythrocyte counting assay

Knowledge of the principles and techniques of erythrocyte counting (microscopic imaging)

Updated Dec 202412 min read✓ Reviewed
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Rh blood grouping test

Master the principles and techniques of enzyme-mediated determination of Rh blood group, this experiment is from the Mudanjiang Medical College undergraduate 5-

Updated Dec 202412 min read✓ Reviewed
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reticulocyte counting assay

Reticulocytes are the transitional cells between late juvenile erythrocyte denucleation and fully mature erythrocytes, because of its cytoplasm there is still a

Updated Dec 202412 min read✓ Reviewed
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Urine relative density retention assay

gravimetric method First, the experimental principle: urine hydrometer is a liquid hydrometer, can measure the specific gravity of urine under the specified te

Updated Dec 202412 min read✓ Reviewed
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Erythrocyte osmotic fragility test

This test is to determine the resistance of erythrocytes to different concentrations of hypotonic saline solution, this resistance is closely related to the rat

Updated Dec 202412 min read✓ Reviewed
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cold hemolysis test

Paroxysmal cold hemoglobinuria (PCH) is a kind of autoimmune hemolytic syndrome patients produce a kind of cold-reactive antibody (D-L antibody), this antibody

Updated Dec 202412 min read✓ Reviewed
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Qualitative urine ketone body test

The addition of sodium nitrosoferrocyanide to urine containing ketone bodies resulted in the appearance of a purple ring when it was dissociated from the ammoni

Updated Dec 202412 min read✓ Reviewed
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Urine Sugar Screening Laboratory

In the reagent tape there is no glucose oxidase (GOD) peroxidase (POD) pigment original and weak acidic buffer composed of the reaction reagent and as the base

Updated Dec 202412 min read✓ Reviewed
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Megaloblastic anemia analytical test

Blood color: anemia is not obvious in mild cases, but obvious anemia in severe cases, which is macrocytic orthochromatic. MCV is increased parallel to the degre

Updated Dec 202412 min read✓ Reviewed
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Qualitative urine myoglobin test experiment

Myoglobin, like hemoglobin, contains the heme gene in the molecule and has peroxidase-like activity that can be detected by the reaction of benzidine and o-tolu

Updated Dec 202412 min read✓ Reviewed
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Qualitative urine celiac disease test

Fat is soluble in ether, and fat droplets can be recognized by staining.This experiment was derived from the Mudanjiang Medical College undergraduate 5-year cli

Updated Dec 202412 min read✓ Reviewed
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Determination of fructose in seminal plasma

The fructose of seminal plasma is co-cooled with resorcinol in an acidic environment at 90℃ to produce a red compound, the color of which is directly proportio

Updated Dec 202412 min read✓ Reviewed
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Urine cholagogic test

Urobilinogen reacts with p-dimethylaminobenzaldehyde in acidic solution to produce a red compound, which is derived from the clinical experiment guide of the 5-

Updated Dec 202412 min read✓ Reviewed
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Sudan black staining experiment

Sudan black B (SB) is a fat-soluble dye, which can be dissolved in the lipid-containing structures in the cell plasma, so that the lipids in the cytoplasm appea

Updated Dec 202412 min read✓ Reviewed
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Urinary Sediment Test Laboratory

Lab Notes: 1. The fresh pH value of urine should be below 6. 2, the examined urine SG in 1.026 or less, such as <1.016 for hypotonic urine easy to destroy

Updated Dec 202412 min read✓ Reviewed
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Plasmapheresis experiment

Exudate may contain a large amount of plasma membrane proteins (also known as acidic glycoproteins Pr) whose isoelectric point is between PH 3-5 and can produce

Updated Dec 202412 min read✓ Reviewed
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hemolytic test

This test uses the patient's erythrocytes to cause hemolysis to occur after incubation in their own serum (containing complement) at 37°C due to acid productio

Updated Dec 202412 min read✓ Reviewed
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acid hemolysis test

Erythrocytes from patients with PNH, due to their inherent defects, have increased sensitivity to complement and are easily destroyed by hemolysis in acidified

Updated Dec 202412 min read✓ Reviewed
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Periodic acid-Schiff's reaction experiment

The principle of PAS reaction to show sugars is due to the polysaccharides containing glycol groups, under the action of periodic acid, oxidation to produce ald

Updated Dec 202412 min read✓ Reviewed
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Fecal direct smear assay

1, clean slides with isotonic saline for 1-2 d, selecting abnormal parts of the feces, or selecting different parts of the feces to be directly smeared. 2. It

Updated Dec 202412 min read✓ Reviewed
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Cerebrospinal fluid total protein assay

Sulfosalicylic acid is an alkaloidal reagent that can precipitate proteins, but the ability to precipitate white Pr is stronger than ball Pr. After adding Na2SO

Updated Dec 202412 min read✓ Reviewed
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occult blood test (medicine)

Ferrous hemoglobin in o-toluidine zone method hemoglobin has peroxide E-like activity. It can catalyze H2O2 to release the new ecological O2 to oxidize the rece

Updated Dec 202412 min read✓ Reviewed
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Non-specific esterase staining assay

Nonspecific esterase (Nonspecific, esteras. NSE) staining method can be divided into three categories: neutral non-specific esterase, acidic non-specific estera

Updated Dec 202412 min read✓ Reviewed
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Cerebrospinal fluid total protein assay

Saturated ammonium sulfate can precipitate globular Pr. The content of globular Pr in normal cerebrospinal fluid is very low. Therefore, the positive result, if

Updated Dec 202412 min read✓ Reviewed
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Cerebrospinal fluid microscopy experiment

Cerebrospinal fluid (CSF) microscopy is used to count and categorize cerebrospinal fluid (CSF) cells to provide a basis for determining various diseases. This e

Updated Dec 202412 min read✓ Reviewed
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Semen microscopy experiment

After the semen bath is liquefied, take 1 drop of the mixed semen specimen on a clean slide with a coverslip, and then observe the presence of spermatozoa and t

Updated Dec 202412 min read✓ Reviewed
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Normal Bone Marrow Imaging Assay

The distribution of blood cells in the bone marrow of healthy adults at different stages of development is highly variable, and a normal bone marrow picture is

Updated Dec 202412 min read✓ Reviewed
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alkaline phosphatase staining assay

Alkaline phosphatase in cell tissues hydrolyzes the substrate (sodium naphthol a-monophosphate) in the action solution in an alkaline (PH 9.0-9.6) environment t

Updated Dec 202412 min read✓ Reviewed
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Phenylketonuria qualitative screening test

Phenylpyruvic acid reacts with trivalent iron ions to produce a blue color, interfering with the color development and causing a false-negative reaction of the

Updated Dec 202412 min read✓ Reviewed
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peroxidase staining assay

The peroxide E in the cell decomposes hydrogen peroxide to release O atoms, which oxidize benzidine and change it to benzidine orchid, causing the cell plasma t

Updated Dec 202412 min read✓ Reviewed
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Plasma D-dimer assay

Plasma D-dimer assay (D-dizller, D-D) detection is commonly used in the following two methods. 1, latex agglutination method, subject to the plasma added to the

Updated Dec 202412 min read✓ Reviewed
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Sucrose water hemolysis test

The sucrose hemolysis test can be used (1) to observe whether hemolysis occurs by destruction of red blood cells, and (2) this test is often used in conjunction

Updated Dec 202412 min read✓ Reviewed
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Cellular iron staining assay

Ferritin and ferritin (extracellular iron) in bone marrow and iron particles (intracellular iron) in naive erythrocytes interact with potassium ferrocyanide to

Updated Dec 202412 min read✓ Reviewed
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Colorimetric assay for serum magnesium

Magnesium and cadmium ions in serum bind to methyl muscimol blue staining in alkaline solution, and the addition of EGTA can mask the interference of the ions.

Updated Dec 202412 min read✓ Reviewed
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Glycosylated serum protein assay

Serum glucose undergoes a non-enzymatic glycation reaction with the amino group at the N-terminus of albumin and other serum protein molecules to form a macromo

Updated Dec 202412 min read✓ Reviewed
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Eosinophilic Leukemia Detection Laboratory

Blood picture: white blood cell count is obviously increased, up to (500-20O)×109/L, all stages of sclerophilic granulocytes are obviously increased, and conti

Updated Dec 202412 min read✓ Reviewed
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Acute promyelocytic leukemia detection test

Hemoglobin and red blood cell count is mildly to moderately reduced, some cases of severe reduction, white blood cell count in most cases below 15 × 109 / L, b

Updated Dec 202412 min read✓ Reviewed
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Aplastic anemia analytical test

Retrovirus is an acquired myelopoietic dysfunction disease, the patient's bone marrow hematopoietic tissue is reduced, the red bone marrow is replaced by adipos

Updated Dec 202412 min read✓ Reviewed
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Subacute granulocytic leukemia detection assay

Subacute granulocytic leukemia (subacute) is a subtype of acute granulomatous leukemia proposed by the Institute of Hematology of the Chinese Academy of Medical

Updated Dec 202412 min read✓ Reviewed
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Serum Mucin Assay

When 0.6 mol/L perchloric acid is used to determine the protein in serum, mucin is not precipitated and remains in the filtrate, then phosphotungstic acid is ad

Updated Dec 202412 min read✓ Reviewed
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Protein-free hemofiltrate preparation experiment

Protein-free hemofiltrate preparation experiments can be used for (1) precipitation of proteins by protein precipitants and (2) removal of precipitated proteins

Updated Dec 202412 min read✓ Reviewed
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Plasma fibrinogen assay

Through this experiment, trainees can master the principle and method of plasma fibrinogen determination and the preparation of reagents. This experiment is fro

Updated Dec 202412 min read✓ Reviewed
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Chronic Lymphocytic Leukemia Detection Test

Chronic lymphocytic leukemia (chronic lymphatic cbronic lymphvcytic leukemia cll) is a malignant proliferative disease of lymphocytes in the lymphatic system wi

Updated Dec 202412 min read✓ Reviewed
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Enzymatic standard curve production experiment

Master the production of enzyme standard curve, the determination of enzyme fixed time method and the use of semi-automated analyzer. This experiment is from Mu

Updated Dec 202412 min read✓ Reviewed
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Serum Glucose Assay

Glucose oxidase catalyzes the oxidation of glucose to glucuronic acid and produces hydrogen peroxide: glucose ten 2H2O + O2 = gluconic acid ten 2H2O2. This expe

Updated Dec 202412 min read✓ Reviewed
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Multiple Myeloma Detection Tests

Blood picture: the vast majority of patients have different degrees of anemia, the severity of anemia with the progress of the disease and aggravation of the an

Updated Dec 202412 min read✓ Reviewed
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Serum total cholesterol assay

Isopropanol was used, and bilirubin was adsorbed with alumina during extraction equal to the interferents (phospholipids and glycerol were also adsorbed, and th

Updated Dec 202412 min read✓ Reviewed
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Eosinophilic Leukemia Detection Tests

Hematology: 1、Acute type: the white blood cell count is normal, increased or decreased, basophils are obviously dominant, up to 30-80%, accompanied by a certa

Updated Dec 202412 min read✓ Reviewed
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Experiments in methodological evaluation

I. Intra-lot reproducibility test Purpose: To examine the random error of the experimental method and evaluate the precision of the method. II. Recovery test

Updated Dec 202412 min read✓ Reviewed
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Chronic Granulocytic Leukemia Detection Test

Chronic granulocytic leukemia is a leukemic malignant proliferative disease of the coarse cell system, according to the natural course of the disease, chronic g

Updated Dec 202412 min read✓ Reviewed
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Malignant Histiocytosis Detection Test

Blood picture: total blood cell reduction is the typical blood picture manifestation of this disease, anemia progressively aggravates, hemoglobin can be less th

Updated Dec 202412 min read✓ Reviewed
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Plasma cell leukemia detection assay

Blood picture: most cases have moderate anemia, usually of the normocytic orthochromatic type, but also of the hypochromatic type, total leukocyte counts are mo

Updated Dec 202412 min read✓ Reviewed
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Serum albumin bromocresol green assay experiment

In pH4.2 buffer, albumin as a cation, combined with the anionic dye bromocresol green (BCG) to form a blue-green compound, there is an absorption peak at a wave

Updated Dec 202412 min read✓ Reviewed
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Pandy experiment

Proteins in the cerebrospinal fluid combine with phenol to form insoluble Pr salts and appear as white turbidity or precipitation. This experiment is derived fr

Updated Dec 202412 min read✓ Reviewed
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Antithrombin III assay

The turbidity of the immunocomplex produced by Antithrombin-III (AT-III) and its corresponding specific antibody is measured by transmission method, and its tur

Updated Dec 202412 min read✓ Reviewed
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Prothrombin time (TT) measurement test

The plasma to be tested is added to the appropriate amount of thrombin solution, the fibrinogen is converted to insoluble fibrin to determine the time required

Updated Dec 202412 min read✓ Reviewed
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Factor VII Related Antigen Content Assay

The turbidity of the immunocomplexes between coagulation factor VIII-related antigen (ⅧR; Ag) and its corresponding specific antibody is determined by the tran

Updated Dec 202412 min read✓ Reviewed
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Acute Granulomonocytic Leukemia (M4) Tests

Acute granulomatous-mono is a kind of acute leukemia due to granulocyte and monocyte two lineages, at the same time, malignant proliferation, clinically both ac

Updated Dec 202412 min read✓ Reviewed
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Serum alanine transferase (ALT) measurement assay

This experiment enables students to master the principle of ALT determination. The reagent preparation method, this experiment is from Mudanjiang Medical Colleg

Updated Dec 202412 min read✓ Reviewed
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Candida albicans identification test

Most of Candida albicans need oxygen 25-30 ℃ to grow well, can also be in 37 ℃ above the growth. Colonies are cream-colored, pie-shaped and smooth. In the cor

Updated Dec 202412 min read✓ Reviewed
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Urine specimen inoculation experiment

Urine specimen inoculation tests can be used to: check for the presence of Gram-negative or positive bacteria in urine in the clinic, which can be reported.

Updated Dec 202412 min read✓ Reviewed
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Bacterial catalase assay

Certain bacteria secrete the enzyme peroxynitrite, which causes hydrogen peroxide to produce water and primordial oxygen, followed by the formation of oxygen mo

Updated Dec 202412 min read✓ Reviewed
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Urinary 17-hydroxysteroid assay

Urinary 17-hydroxysteroids are hormones and their metabolites secreted by the suprarenal cortex, and their excretion from urine can reflect the function of the

Updated Dec 202412 min read✓ Reviewed
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Bence-Jones protein characterization test

Ben-Zhou's Pr, also known as coagulin, is an immunoglobulin light chain or its polymer. This Pr in a certain PH conditions when heated 40 ° C a 60 ° C, precip

Updated Dec 202412 min read✓ Reviewed
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VP Experimental

The VP assay can be applied to (1) identify Enterobacter aerogenes and Escherichia coli, and (2) characterize other bacterial groups, including actinomycetes.

Updated Dec 202412 min read✓ Reviewed
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Acute Mononuclear Cell Leukemia (M5) Detection Tests

This type of clinical symptoms in addition to the general acute leukemia, its prominent manifestations of skin and mucous membrane damage to the skin appear dif

Updated Dec 202412 min read✓ Reviewed
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APOA, APOB Determination Experiment

Rocket immunoelectrophoresis is an improvement of unidirectional immunodiffusion method, through the application of direct current (stabilized voltage and curre

Updated Dec 202412 min read✓ Reviewed
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Acute erythroleukemia (M6) test

Erythremia is a malignant proliferation of cells of the red lineage. Erythroleukemia (erthrdeukemia) or Di-Gugliemo syndrome is a malignant proliferation of cel

Updated Dec 202412 min read✓ Reviewed
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Fecal specimen processing test

The fecal specimen taken directly affects the accuracy of the results, usually using naturally excreted feces, specimen collection precautions are as follows:

Updated Dec 202412 min read✓ Reviewed
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Urine ferritin staining Rous test

Examination of urinary ferritin in patients with intravascular hemolysis. This experiment was obtained from the laboratory instruction of Mudanjiang Medical Col

Updated Dec 202412 min read✓ Reviewed
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Clear Aspartate Aminotransferase AST Assay

According to this experiment, trainees can understand the reagent preparation of the experimental program and master its principle and measurement method. This

Updated Dec 202412 min read✓ Reviewed
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bacterial culture experiment

According to the preliminary clinical diagnosis and bacterial species and the different gas needs of bacteria to be examined, it can be divided into aerobic cul

Updated Dec 202412 min read✓ Reviewed
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Bile hemolysis test

Bile salts, sodium deoxycholate and sodium taurocholate selectively lysed Streptococcus pneumoniae, while other streptococci tolerated them, the mechanism of wh

Updated Dec 202412 min read✓ Reviewed
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Prothrombin time (PT) measurement test

Prothrombin time (PT) assay experiments are mainly used for (1) exogenous system ideal and commonly used screening experiments (2) exogenous pathway coagulation

Updated Dec 202412 min read✓ Reviewed
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Serum amylase (AMS) assay test

Through this experiment, trainees can master the principle of amylase determination, the preparation of reagents and learn the determination method. This experi

Updated Dec 202412 min read✓ Reviewed
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Modified Monica QC chart experiment

Master the significance of inter-room quality control. 2. Master the drawing of the modified Monica quality control chart and the determination of results. 3. T

Updated Dec 202412 min read✓ Reviewed
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Anti-human globulin (coomb's test)

The anti-human globulin test (coomb's) is divided into a direct test (direct reaction) and an indirect test (indirect reaction). The purpose of the direct test

Updated Dec 202412 min read✓ Reviewed
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Sputum specimen processing experiments

General bacterial smear examination: select the purulent or bloody part of sputum, smear it into a uniform thin slice, perform Gram staining and microscopic exa

Updated Dec 202412 min read✓ Reviewed
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Urine 17-ketosteroids assay

Urine is hydrolyzed by acid, changing bound 17-ketosteroids to free 17-ketosteroids. The latter can react with m-dinitrobenzene in alkaline solution to give a r

Updated Dec 202412 min read✓ Reviewed

Related topics

Techniques often explored alongside immunological experiments.

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