Catlab Reports Bulletin

The Catlab Reports Bulletin is published monthly. Until the publication of the Catlab website, it was mailed electronically to our clients. It consists of a monograph related with laboratory topics. Each month it addresses a different area of Catlab; the topics can be more specific (concrete diagnostic techniques) or deal with more generic aspects (Quality, Management, …).

Bulletin Nº64 - November 2015

MOLECULAR BIOLOGY - Massive sequencing for antiretroviral resistance HIV-1
From February 2016, the massive sequencing will be used for the test of resistance to HIV-1 antiretroviral in Catlab. This method has several advantages; the resistances of the three regions (Pro, RT, INT) are determined in one integrated test; it automatically determines the subtype of HIV-1, and finally, the new test allows the detection of mutations in viral quasispecies that only represent 1% of the viral population, compared to 20% of the current test.

Bulletin Nº63 - October 2015

MICROBIOLOGY- Diagnosis of Sexually Transmitted Infections
Sexually transmitted infections (STI) are a public health problem that affects a significant number of the population. It is essential to do a reliable and early diagnosis to avoid infection, its spread and possible complications.

Bulletin Nº62 - September 2015

MICROBIOLOGY - Pick-up samples for the study of skin infections and soft tissue
This group of infections is broad and complex. Ranging from skin infections, skin appendages, subcutaneous tissue, fascia and skeletal muscle. They are very common infections of varying severity and can evolve acutely or chronically.
The collection of good quality samples for microbiological analysis, is critical in this process which will determine the microbiological diagnosis.

Bulletin Nº61 - July 2015

CYTOGENETICS - Genetic markers in the myeloproliferative syndromes classification
Myeloproliferative neoplasms (NMP) are clonal disorders of hematopoietic precursor cells, characterized by the proliferation of myeloid or more lines. Classically, the NMP were subdivided according to whether the Philadelphia chromosome (BCR / ABL1), confirming a chronic myeloid leukemia (CML), or if the patient was BCR / ABL1 negative, was detected using clinical criteria. Currently, the study of mutational status of JAK2, MPL and CALR genes, plays an important role in the classification of different subtypes of NMP.

Bulletin Nº60 - June 2015

HORMONES - Cortisol in serum. New reference ranges.
The determination of cortisol in blood is used for diagnosis and treatment of functional disorders of the adrenal gland, like Cushing's syndrome and Addison's disease. In order to improve the quality of the results obtained in our laboratory, we will proceed to replace the current reagent by a new reagent in which have been changed polyclonal antibodies by monoclonal antibodies. The new reference ranges and the date from which they are applicable shall be indicated in the reports.

Bulletin Nº59 - May 2015

IMMUNOLOGY - Anti-nuclear antibodies (ANA). A step towards standardization
Anti-nuclear antibodies (ANA) are present in the serum of patients with autoimmune diseases. In Catlab the ANA is performed with the technique of indirect immunofluorescence (IFI). The main disadvantage of the IFI, is the difficult to standardize methodology and the high degree of subjectivity. Catlab has incorporated the GSIGHT®, an analyzer that enables automated reading of the ANA. It increases sensitivity and objectivity of the technique.

Bulletin Nº58 - April 2015

URGENT CARE - Management of critical values in the Emergency Laboratories
Standard UNE-EN ISO 15189:2007 indicates clearly that the laboratory must have procedures to notify a doctor or responsible for the medical care of the patient immediately when the results of the corresponding analysis are at critical intervals.

Bulletin Nº57 - March 2015

HORMONES - Human Chorionic gonadotropin realities(hCG)
Human chorionic gonadotropin (hCG) is a heterodimeric glycoprotein with an alpha subunit and a beta subunit. Structural different varieties are found in blood, amniotic fluid and urine in different proportions. The large number of forms hampers its analysis by immunoassay.

Bulletin Nº56 - February 2015

CITOMETRY - Prognostic markers and Minimum Residual Disease
Monoclonal gammopathies (MG) are a group of disorders or entities characterized by clonal proliferation of plasma cells (PC). The immunophenotypic study of PC by multiparametric flow cytometry contributes decisively in the differential diagnosis, prognosis and monitoring of MG.

Bulletin Nº55 - January 2015

HORMONES - Serum Estradiol; New reference intervals
The estradiol (17β-estradiol) is a female sex hormone from estrogen group but is also present in men. In order to improve the quality of the results obtained in our laboratory, soon we will proceed to replace the current reagent (Elecsys Estradiol II) with a new reagent (Elecsys Estradiol III) that were changed polyclonal antibodies by monoclonal antibodies. It has been restandardize against CRM 6400th by DI-GC / MS and have calculated new reference values. The new method is more specific and has less interference.