Re: metamphetamine in urine

From: James Lie (splaz@cyllene.uwa.edu.au)
Sun Apr 8 09:24:12 2001


>----- Original Message -----
From: "James Lie" <splaz@cyllene.uwa.edu.au> To: "Multiple recipients of list OB-GYN-L" <ob-gyn-l@mail.medispecialty.com> Sent: Saturday, March 24, 2001 9:26 AM Subject: metamphetamine in urine

> She presented 2 days ago with lower abdo ...... Urine drug screen repeated
2 days apart were positive for > metamphetamine.
> She still denies taking any amphetamines recently
>
> 2. A false positive result?
> 3. Any other conditions or processes that can lead to metamphet in urine?
>

Follow up of above case:

1. specific gas chromatographic-mass spectrometric test on her urine was negative for metamphetamine or amphetamine. 2. the lab informed me that the following drugs are likely to cross-react in most amphetamine screening test assays: ephedrine, pseudoephedrine, ranitidine, phentermi9ne, bupropion, chlorpromazine and promethazine.

****guess what she has also been taking: - ranitidine.

Therefore I apologised for the behaviour of our nursing staff towards her (treating her like she's a drug addict, and not a reformed one). She went home and returned a week later in spontaneous labour and she had a normal delivery of a normal boy.

> James Lie
> GP and 18yrs rural obs
>





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