• Publications
  • Influence
Clinical evaluation and use of urine screening for drug abuse.
Urine drug screening is indicated to evaluate patients who show mental status or behavioral changes and to monitor the abstinence of drug abusers. The appropriate timing for collecting urineExpand
  • 40
  • 3
Quetiapine and false-positive urine drug testing for tricyclic antidepressants.
  • 23
  • 2
Urine Screening for Marijuana Among Methadone-Maintained Patients
Ninety-eight male patients on methadone maintenance treatment provided weekly urine screens for typical substances of abuse and periodic screens for 9-carboxy-tetrahydrocannabi-nol (THC). AlthoughExpand
  • 29
  • 2
Characterization of the thrombin-induced contraction of vascular smooth muscle.
Purified human alpha-thrombin induced a sustained contraction of isolated rabbit aorta and dog coronary arteries. These vascular tissues also exhibited a refractoriness towards a second thrombinExpand
  • 46
  • 1
Disulfiram use in patients with abnormal liver function test results.
BACKGROUND Concern about the precipitation of severe hepatitis by disulfiram often causes clinicians to avoid using this effective treatment in patients who have elevated baseline transaminaseExpand
  • 26
  • 1
A nationwide survey of urinalysis practices of methadone maintenance clinics. Utilization of laboratory services.
The urinalysis practices of 324 methadone maintenance clinics were surveyed by using a brief self-report questionnaire. Results indicated that there was a wide variability in collection practices andExpand
  • 10
  • 1
Generation of a vasoactive substance in human plasma during coagulation. Evidence of thrombin-induced contraction of rabbit aorta and dog coronary artery.
A stimulant of vascular smooth muscle contraction was generated in fresh, citrated human plasma during activation of the clotting system. Plasma, exposed briefly to thromboplastin and Ca++, induced aExpand
  • 22
Simplified high performance liquid chromatographic method for the determination of clonazepam and other benzodiazepines in serum.
A convenient and sensitive high performance liquid chromatographic method was developed for determination of clonazepam in serum using a C-18 reverse-phase column, and mobile phase consisting of aExpand
  • 10
Analysis of urinary benzodiazepines using solid-phase extraction and gas chromatography-mass spectrometry.
A solid-phase extraction and GC-MS confirmation method was developed for certain urinary diazolo- and triazolobenzodiazepines, including the metabolites of lorazepam, clonazepam, alprazolam, andExpand
  • 46
Differentiation of renal from non-renal hematuria by microscopic examination of erythrocytes in urine.
Recent studies indicate that hematuria of renal parenchymal origin can be differentiated from hematuria of other origin by the presence of dysmorphic urinary erythrocytes (cells exhibiting irregularExpand
  • 36
  • PDF