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tubes seven used generally a set for am fm radio all tested good on hickok 533a
$16.00
quality

olympic el84 6bq5 tube made in holland tested good s1
$3.76
quality

80 tested good rca uy 224 radio tubes type 24a raytheon sylvania cunn nu philco+
$74.88
quality

valvo holland ech81 radio vacuum tube tested good guaranteed
$9.95
quality

nice tested good weston 25 ua microamp dc meter f old ham radio tube audio amp
$3.25
quality

10 x tube lot type 41 vt 48 ph41 er41 tested good amp radio ham
$30.00
quality

single type 41 tube 41 vt 48 ph41 er41 tested good amp radio ham
$3.50
quality

7 used 7735 6ge8 vacuum tubes all tested good 2 ge 5 westinghouse
$22.50
quality

lot of 6 of 12au7 used vacuum tubes old stock tested good
$71.00
quality

tested good connoisseur mk ii stylus pickup old vintage hifi tube amp turntable
$0.99
quality

2 good testing 1920s arcturus blue glass 127 uy 227 globe radio vacuum tubes
$24.50
quality

3 good rca 6012 ham radio tubes type 6012 tested 50 32 50 32 44 32 on tv 7
$12.88
quality

6 nos st sylvania 26 radio tubes type 26 tung sol cunn nu test good on tv 7
$38.88
quality

4 nos general electric 6a3 radio tubes type 6a3 tested good on tv7 philco
$240.88
quality

2 good testing nos jan 5y3g rectifier radio vacuum tubes in original boxes
$6.00
quality

2e26 tube used tested good
$5.91
quality

1 good 1 weak sylvania 6b4g radio tubes type 6b4g tested 68 38 34 38 tv7 ge
$38.88
quality

3 good blue arcturus 551 radio tubes type 51 tv 7 tested 1 need cap but dud incl
$38.88
quality

my stock of 1723 vacuum tubes for sale all tested good
$95.00
quality

5 good rca radiotron ux 199 radio tubes 1 type ux 120 tv 7 tested good
$71.88
quality

1 good blue arcturus 26 radio tube type ux 226 tv 7 tested 42 29
$38.88
quality

1 good blue arcturus 124 radio tube type uy 224 tv 7 tested 53 25
$17.88
quality

11 good globe rca ux 226 radio tubes type 26 tv7 tested cunningham rayovac
$78.88
quality

5 matched globe rca radiotron ux 201a radio tubes type 01a tv 7 tested good
$74.88
quality

2 good testing 1920s 201a radio vacuum tubes marathon van dyke paper labels
$5.00
quality

5u8 lot of 2 sylvania and a unknown both tested good
$6.99
quality

7a7 tube used tested good
$4.75
quality

1nl5 tube used tested good
$5.75
quality

sylvania 6bl7gt black plate vacuum tubes tested good
$12.99
quality

philco 6n7gt vacuum tube black glass tested very good
$12.99
quality

5 6ag7 amp radio amplifier ham tube all tested good
$12.00
quality

7 6ah6 radio amplifier electronic vacuum tubes all tested very good
$14.99
quality

philco 6bx7gt black plate vacuum tubes tested good
$12.99
quality

2 good testing rca ux 281 large globe half wave rectifier radio vacuum tubes
$5.00
quality

silvertone 12av5 12av5ga tube tested good
$8.95
quality

1 11 tested good rca 80 radio rectifier tubes type 80 cunn philco sylvania nu ++
$4.99
quality

old qrs red top tube tv 7 tested good
$9.99
quality

lot of 4 electron tubes 12au6 mixed brands tested good ge sylvania hitachi s1
$9.00
quality

2 6au5 gt vacuum tube both tested good
$12.99
quality

antique vintage radio electron vacuum tube rca 47 amplifier globe tests good
$24.00
quality

1 5r4gy tube rca ge amperex test good usa
$20.00
quality

good testing philco type 45 triode audio amplifier vacuum tube
$39.99
quality

vintage tested working atwater kent type 36 radio chassis sounds good
$200.00
quality

wards airline 93br 715b tuning assembly tested good
$49.99
quality

vintage zenith model h500 trans oceanic portable tube radio c1950s tested good
$292.61
quality

antique vintage electron vacuum radio tube national union nu 80 tests good
$19.00
quality

antique vintage electron vacuum radio tube rca 80 tests good
$19.00
quality

antique vintage electron vacuum radio tube cunningham 80 tests good
$19.00
quality

antique vintage electron vacuum radio tube rca radiotron 80 tests good
$19.00
quality

eight 12bq6 vacuum tubes vintage old hickok 800a tested good to great
$10.00
quality

seven 25bq6 vacuum tubes vintage old hickok 800a tested good to great
$8.00
quality

four 6sn7gtb vacuum tube 6sn7 6sn7gt tested good on hickok 800a
$34.00
quality

one transoceanic radio tube set 1u4 1u5 1r5 and 3v4 some nos tested good
$30.00
quality

uac 100 base power supply kit for prc pack sets tested good free shipping
$325.00
quality

vintage 1960s grundig radio 2320 shortwave fm tube radio good condition tested
$165.00
quality

7f7 tube used tested good
$7.40
quality

one 6v6gt vintage tube tested very good
$27.99
quality

1b3 vacuum tubes tested good raytheon rca sylvania
$3.00
quality

general electric 6bq7a 6bz7 vacuum tube tested good
$2.00
quality

philco tube radio 6h6g tube engraved base tested good
$19.99
quality

atwater kent tube radio audio transformer fat one tested good
$39.99
quality

6r8 vacuum tube tested good raytheon
$2.00
quality

silvertone 12av6 vacuum tube tested good
$12.75
quality

pair 2 rca sylvania 6l6 audio amplifer vacuum tube lot tested good
$25.99
quality

pair 2 rca 6sn7 6sn7gtb radio black base vacuum tube tested good 6sn7gt
$25.99
quality

single sylvania 6v6gt 6v6 radio black base tube silver top tested good
$25.99
quality

vintage rca electron audio amplifier guitar vacuum tube 12au7a + box tested good
$25.99
quality

single hytron cbs 6sn7 6sn7gt radio black base vacuum tube 5413 tested good
$26.99
quality

vintage electron vacuum tube 16a8 pcl82 matsushita tested good
$17.99
quality

jan chy 1626 hytron vt 137 radio tube tested good s1
$9.00
quality

3 am radio 455kc if transformers tested good
$29.99
quality

vintage us gloritone 99a cathedral radio tested working good sound
$300.00
quality

vintage raytheon type 80 rectifier tube st shape hickok tested good
$9.00
quality

six 4bz6 vintage vacuum tube tested on hickok 800a good
$22.00
quality

rca 6al11 vacuum tube tested good
$2.00
quality

ge 6ar11 vacuum tube tested good
$2.00
quality

one used ge 6lr6 ham receiver power vacuum tube tested good
$25.00
quality

four 6ew6 vintage vacuum tube tested on hickok 800a 2 good 2 very strong
$1.00
quality

three 6hz6 vintage vacuum tube tested on hickok 800a good
$1.00
quality

two 3v4 vintage vacuum tube tested on hickok 800a good
$4.00
quality

three 6jh6 vintage vacuum tube tested on hickok 800a good
$1.00
quality

delco type 57 radio tube tested good
$5.99
quality

1942 rca 5y4g tube tested good zenith or philco radio
$14.99
quality

good testing rca radiotron type 5z3 large glass rectifier radio vacuum tube
$10.00
quality

vintage cunningham short pin c 299 tube tested good 10 16 original box
$50.00
quality

2 6j5wgt nos nib 1 6j5gt test very good on calib tv7 d tester 3 total
$20.50
quality

g e 6ar11 vacuum tube tested good
$2.00
quality


vintage opticial optician eye testing lense case kit steam punk good cond
$175.00
quality

fortress2 blue jamma arcade pcb board only tested good working
$79.00
quality

fight fever viccoh mvs cartridge tested good working
$199.00
quality

heavy metal geomatrix capcom rom for sega naomi tested good working
$89.00
quality

3 6ca4 tubes ge raytheon test very good on calib tv7 d tester great tubes
$24.50
quality

antique am desk table tube radio unbranded tested works good
$275.00
quality

1 good blue arcturus 26 radio tube type ux 226 tv 7 tested 42 29
$38.88
quality

11 good globe rca ux 226 radio tubes type 26 tv7 tested cunningham rayovac
$78.88
quality

5 matched globe rca radiotron ux 201a radio tubes type 01a tv 7 tested good
$74.88
quality

5 good rca radiotron ux 199 radio tubes 1 type ux 120 tv 7 tested good
$71.88
quality

data east monday night football ramp goal post motor tested good used
$75.00
quality

old red cherry bakelite cigar mouthpiece tested 12 grams very good used
$63.00
quality

old bakelite and lucite cigarette mouth piece tested very good in orig box
$39.99
quality

my stock of 1723 vacuum tubes for sale all tested good
$95.00
quality

wms bb2 dongle game software tested good
$350.00
quality

6bq5 amperex vacuum tube used old stock vintage tested good
$40.00
quality

vintage nos readrite 0 25 ma panel meter tested good
$29.99
quality

1 good 1 weak sylvania 6b4g radio tubes type 6b4g tested 68 38 34 38 tv7 ge
$38.88
quality

3 good blue arcturus 551 radio tubes type 51 tv 7 tested 1 need cap but dud incl
$38.88
quality

dept 56 north pole series motorcycle test drive 799956 d56 np good condition
$20.65
quality

dept 56 north pole series coca cola taste test 56841 d56 np good condition
$35.05
quality

headphones us army signal corps r 14 good used condition tested working neat
$34.99
quality

lot of 9 of 6fq7 6cg7 vacuum tubes stock vintage tested good
$148.00
quality

vintage panasonic clock radio wood grain finish rc 80 tested and works good
$26.21
quality

wms bb2 dongle game software tested good
$450.00
quality

tested good vintage gemlites electric lighted plastic christmas bell cluster
$25.99
quality

6 nos st sylvania 26 radio tubes type 26 tung sol cunn nu test good on tv 7
$38.88
quality

4 nos general electric 6a3 radio tubes type 6a3 tested good on tv7 philco
$240.88
quality

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Test Good

Test+Good

Know About Urea Breath Test

A test for diagnosing and identifying the h pylori presence is calles urea breath test. This test uses the radioactive isotope of carbon for detecting the existence of a bacterium.

Urea breath test is a diagnostic procedure which is done to identify the existence of a bacterium called Helicobacter pylori in the stomach. This is a spiral bacterium which is involved in the diseases like peptic ulcer, gastritis and gastric ulcer. This kind of bacteria can convert urea into ammonia and this quality is used in this test. Let us see how it works.

The Helicobacter Pylori or H pylori bacteria, as it is commonly known, can break down the bond existing between urea and a tail of carbon dioxide attached to it. And the carbon dioxide released from this reaction remains in the breath in measured concentration. This is a non-invasive diagnostic test undertaken both before and after the treatment.

In this test, urea capsule is given to the patient to swallow. The capsule contains isotope carbon composition of either radioactive type which is carbon 14 or non-radioactive type which is carbon 13. After ten minutes to half an hour, a breath test detects if the urea has been split or not. If yes, it means that there is urease enzyme used by H pylori for metabolizing urea in the stomach. This marks the presence of bacteria.

There are two ways of this breath test. In first way, a very small dose of urea is administered through the capsule. This capsule is marked with the carbon of radioactive type. In another test method, urea dose is comparatively larger while non radioactive carbon type or carbon 13 is used.

After successful diagnosis, treatment starts. Antibiotics are prescribed to the H Pylori positive patients. These antibiotics depress the bacteria and the acid level in the stomach is also lowered. Upon completion of the medicine course, same test is repeated. If the infection is still there, positive result will be generated. In absence of anymore infection, result will be negative.  There should be a gap of minimum twenty eight days between the completion of antibiotics and the repeat test.

This is a safe test procedure and there is no known risk of undergoing the breath test.

However, urea breath test is not recommended for pregnant women especially the radioactive isotope of carbon is not recommended for them. There are other ways of detecting the presence of H Pylori bacterium in the stomach of a pregnant woman. Blood antibody test or stool antigen test can be done if a pregnant lady is suspected for this bacterial infection.  

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