H-Index
17
Scimago Lab
powered by Scopus
eISSN: 1941-5923
call: +1.631.629.4328
Mon-Fri 10 am - 2 pm EST

Logo

Medical Science Monitor Basic Research
MSMbanner

Annals
ISI-Home

Get your full text copy in PDF

A Case of a False-Positive Urine Pregnancy Test and Delayed Diagnosis of Obstructive Pyelonephritis

Rahul Mital, Moriah Forster, Abdurahman Alloghbi, Ammar Kayyali

(College of Medicine, University of Toledo College of Medicine, Toledo, OH, USA)

Am J Case Rep 2020; 21:e920440

DOI: 10.12659/AJCR.920440


BACKGROUND: Urine pregnancy tests are usually performed by women at home and also by healthcare professionals. However, there are several conditions that may cause a false-positive urine pregnancy test, including trophoblast tumors, malignancy, nephrotic syndrome, adenomyosis, tubo-ovarian abscess, and paraneoplastic syndromes. A case is presented of a false-positive urine pregnancy test in a 28-year-old woman with a history of tubal ligation, who had a delayed diagnosis of obstructive pyelonephritis due to renal calculus.
CASE REPORT: A 28-year-old woman had previously been sterilized by tubal ligation. She presented with acute pyelonephritis associated with a left staghorn renal calculus and was found to have a false-positive urine pregnancy test, which delayed the diagnosis and management of her acute pyelonephritis. On follow-up, she had a negative serum pregnancy test. Abdominal computed tomography (CT) identified a left-sided staghorn calculus resulting in partial ureteric obstruction and hydronephrosis. She was treated with antibiotics, including cefazoline, and a left nephrostomy tube was sited to treat her hydronephrosis. Her pain was initially managed with acetaminophen and hydrocodone. Four days after her initial hospital admission, the patient was stable enough to go home on oral levofloxacin and pain medication.
CONCLUSIONS: This case of a false-positive urine pregnancy test in a 28-year-old woman with a history of tubal ligation highlights that this association may result in the delay in the diagnosis and treatment of acute pyelonephritis.

This paper has been published under Creative Common Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) allowing to download articles and share them with others as long as they credit the authors and the publisher, but without permission to change them in any way or use them commercially.
I agree