ASO

[soma]

[Antistreptolysin-O]
present in pateint serum against bacterial infection streptococcus pyogenes group A
titer will increase after 7 days of infection
and reach the peak after 4-6 weeks
sample :serum
reagent : latex cauted with streptolysin O Ag
sensitivity : 200 IU/ml
or we can use heamagglutenation
and the reagent will be RBCs cauted with Ag
no hemolysis ......>the result `ll be +ve[/SIZE][/SIZE][/CENTER]

[hpf]

يسلموووووووووووو عاشت ايدك

[امتياز]

يسلموووووووووووو عاشت ايدك يا قلبي

[soma]

shokran la morokom ( hpf and emteyaz).w

[soma]

:sm188: :sm180: :sm188: :sm180: :sm188:

How is it used?

The ASO test is primarily ordered to help determine whether a patient has had a recent streptococcal infection.

In most cases, strep infections are identified and treated with antibiotics,
and the infections resolve.

In cases where they do not cause identifiable symptoms and/or go untreated,

however, post-streptococcal sequelae,

namely rheumatic fever and glomerulonephritis,

can develop in some patients,
especially young children.

The test, therefore, is ordered if a patient presents with symptoms suggesting either of these conditions. Since the incidence of post-streptococcal complications has dropped in the U.S., so has the use of the ASO test.


When is it ordered?


The ASO test is ordered when a patient has symptoms

that the doctor suspects may be due to an illness

caused by a previous streptococcal infection.

It is ordered when the symptoms emerge,

usually in the weeks following a sore throat or skin infection.

The test may be ordered twice over a period of 10-14 days to determine if the antibody level is rising, falling, or remaining the same.

What does the test result mean?



ASO test results can be reported in several different ways;

however, the interpretation is generally the same:

the higher the result

is, the more antibody that is present in the blood (unless a titer is performed, which is a ratio and therefore is interpreted differently).


The ASO antibody is either absent or present in very low concentrations in patients who have not had a recent streptococcal (strep) infection.

Antibodies are produced about a week to a month after the initial strep infection.

ASO levels peak at about 4 to 6 weeks after the illness and then taper off but may remain at detectible levels for several months after the strep infection has resolved.

If the test is negative or if ASO is present in very low concentrations, then the patient most likely has not had a recent strep infection.

This is especially true if a sample taken 10 to 14 days later is also negative or minimal.

If the ASO level is high or is rising, then it is likely that a recent strep infection has occurred. ASO levels that are initially high and then decline suggest that an infection has occurred and may be resolving.

The ASO test does not predict if complications will occur following a streptococcal infection, nor do they predict the severity of the disease.

If symptoms of rheumatic fever or glomerulonephritis are present, an elevated ASO level may be used to confirm the diagnosis.

[labspe]

يسلمو ايديكي سوما ...مشكووره وجزاكي الله خير

[soma]

ahleen Labspe

shokran l ehtemamk

w mrork 3la mawdo3i

w enshalla afeedkom[/

:sm189: :sm189: :sm189: :sm189: :sm189

[MaD_SciEntisT]

Antistreptolysin-O (ASO) test
تنتج بكتيريا Streptococcus Pyogenes (Group A) عند أصابتها للإنسان سم(أنتيجين) Toxin يسمى streptolysin-O وهو بروتين الذي يؤدي إلى انحلال الكريات الحمراء والبيضاء وتحطيم الخلايا Cytolysis مثل خلايا عضلة القلب،وتؤدي العدوى هذا النوع من البكتيريا وإفراز السم الخاص بها إلى إنتاج أجسام مضادة خاصة أسمها Antistreptolysin-O ،كما يوجد سم آخر وهو streptolysin-S لكن يتم قياس السم الأول في المقايسات المناعية لسهولة قياسه.

[soma]

shokran lal edafi Mad_scientist

[saleh]

((سوما)) يعطيكي الف عافيه ومجهود يشكر علي)

[saleh]

((سوما)) يعطيكي الف عافيه ومجهود يشكر عليه)

[الفارس]

مشكورة يا سوما
عمل متعوب عليه

[soma]

shokran lel mroor 3la mawdoo3i ( sale7 and al- faress)i

w y3tekom kman alf 3afyyi



:sm170::sm182::sm170::sm182::sm170::sm182::sm170:: sm182::sm170::sm182:

[soma]

w ahlan w sahlan feek a5 saleh fe el montada

[فلسطينية]

شكرا ليك ياسوما وجزاك الله كل خير

[soma]

thnx elk palestenian

[Dr.Ramy]

يسلموووووووووو .. وبارك الله فيك ..

تقبل احترامى ..،

[soma]

thnx elk Dr. Rami

lmroork

[hemoglobin15]

برافو موضوع قيم ........ زرعنا البيارة تين وزيتون

[shahd]

thanxx soma
:sm188:keep going sweety

[soma]

برافو موضوع قيم ........ زرعنا البيارة تين وزيتون




thnx 4 ur nice passing and commenting

[soma]

thank u shahd

for ur nice passing

[بنت العيون]

((سوما)) يعطيكي الف عافيه ومجهود يشكر علي)
و2و2و2و2و2

[سالم66]

ياريت تزودونا بالاعراض السريريه:sm196: