Pyelonephritis laboratory findings: Difference between revisions
Jump to navigation
Jump to search
Usama Talib (talk | contribs) |
Usama Talib (talk | contribs) |
||
| Line 10: | Line 10: | ||
*A combination of leukocyte esterase test and nitrite test (with either of the two test being positive) is considered to be very effective with a sensitivity ranging from 75-84 and a specificity ranging from 82-98 percent. | *A combination of leukocyte esterase test and nitrite test (with either of the two test being positive) is considered to be very effective with a sensitivity ranging from 75-84 and a specificity ranging from 82-98 percent. | ||
==Laboratory Findings== | ==Laboratory Findings== | ||
Laboratory tests are the initial investigations done when suspecting a case of pyelonephritis. Urine and blood samples must be drawn before the beginning of antibiotic therapy to avoid false negative results.<ref name="pmid6992728">{{cite journal| author=Hoverman IV, Gentry LO, Jones DW, Guerriero WG| title=Intrarenal abscess. Report of 14 cases. | journal=Arch Intern Med | year= 1980 | volume= 140 | issue= 7 | pages= 914-6 | pmid=6992728 | doi= | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=6992728 }} </ref> | |||
===Urinalysis=== | ===Urinalysis=== | ||
*Urinalysis is testing of a urine sample. The urine sample is collected in a special container in a health care provider’s office or commercial facility and can be tested in the same location or sent to a lab for analysis. The presence of [[white blood cells]], [[nitrite]]s and bacteria in the urine indicate infection and also indicate the need to start empirical treatment. | *Urinalysis is testing of a urine sample. The urine sample is collected in a special container in a health care provider’s office or commercial facility and can be tested in the same location or sent to a lab for analysis. The presence of [[white blood cells]], [[nitrite]]s and bacteria in the urine indicate infection and also indicate the need to start empirical treatment. | ||
===Urine culture=== | ===Urine culture=== | ||
*A urine culture is performed by placing part of a urine sample in a tube or dish with a substance that encourages any bacteria present to grow. The urine sample is collected in a special container in a health care provider’s office or commercial facility and sent to a lab for culture. Once the bacteria have multiplied, which usually takes 1 to 3 days, they can be identified. The health care provider can then determine the best treatment. | *A urine culture is performed by placing part of a urine sample in a tube or dish with a substance that encourages any bacteria present to grow. The urine sample is collected in a special container in a health care provider’s office or commercial facility and sent to a lab for culture. Once the bacteria have multiplied, which usually takes 1 to 3 days, they can be identified. The health care provider can then determine the best treatment. | ||
===Blood Culture=== | |||
*Blood Cultures can sometime se positive in pyelonephritis. | |||
==References== | ==References== | ||
Revision as of 20:23, 25 January 2017
|
Pyelonephritis Microchapters |
|
Diagnosis |
|
Treatment |
|
Case Studies |
|
Pyelonephritis laboratory findings On the Web |
|
American Roentgen Ray Society Images of Pyelonephritis laboratory findings |
|
Risk calculators and risk factors for Pyelonephritis laboratory findings |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
PMID: 21292654
Overview
The following are a few important aspects of the laboratory testing for pyelonephritis.[1]
- Pyelonephritis can be diagnosed with the help or urinalysis and urine culture.
- Cultures should always be obtained before administration of antibiotics if pyelonephritis is suspected.
- A combination of leukocyte esterase test and nitrite test (with either of the two test being positive) is considered to be very effective with a sensitivity ranging from 75-84 and a specificity ranging from 82-98 percent.
Laboratory Findings
Laboratory tests are the initial investigations done when suspecting a case of pyelonephritis. Urine and blood samples must be drawn before the beginning of antibiotic therapy to avoid false negative results.[2]
Urinalysis
- Urinalysis is testing of a urine sample. The urine sample is collected in a special container in a health care provider’s office or commercial facility and can be tested in the same location or sent to a lab for analysis. The presence of white blood cells, nitrites and bacteria in the urine indicate infection and also indicate the need to start empirical treatment.
Urine culture
- A urine culture is performed by placing part of a urine sample in a tube or dish with a substance that encourages any bacteria present to grow. The urine sample is collected in a special container in a health care provider’s office or commercial facility and sent to a lab for culture. Once the bacteria have multiplied, which usually takes 1 to 3 days, they can be identified. The health care provider can then determine the best treatment.
Blood Culture
- Blood Cultures can sometime se positive in pyelonephritis.
References
- ↑ Ramakrishnan K, Scheid DC (2005). "Diagnosis and management of acute pyelonephritis in adults". Am Fam Physician. 71 (5): 933–42. PMID 15768623.
- ↑ Hoverman IV, Gentry LO, Jones DW, Guerriero WG (1980). "Intrarenal abscess. Report of 14 cases". Arch Intern Med. 140 (7): 914–6. PMID 6992728.