Drug labs

G 85178 Construction Operation of Clandestine Drug Laboratories, Second Edition, by Jack B. Nimble. This revised and expanded edition describes, in step-by-step, illustrated detail, how to set up and run a clandestine drug lab — without getting caught Jack B. Nimble reveals how to select a location, discusses safety precautions — including how and when to shut down — and gives advice for covering your tracks. Sold for informational purposes only. 1994, 5 A x 8 A, 132 pp, illustrated, soft cover. 14.95. 

Drug/Lab test interactions Large doses (more than 500 mg) of vitamin C may cause... 

Drug/Lab test interactions Trans ent elevations of plasma 11-hydroxy-corticosteroid levels (Glenn-Nelson technique) may occur when IV calcium is administered, but levels return to control values after 1 hour. In addition, IV calcium gluconate can produce false-negative values for serum and urinary magnesium. 

Drug/Lab test interactions Large doses of iron dextran (5 mL or more) give a brown color to serum from a blood sample drawn 4 hours after administration they may cause falsely elevated values of serum bilirubin and falsely decreased values of serum calcium. 

Drug/Lab test interactions Methotrexate, pyrimethamine, and most antibiotics invalidate folic acid and vitamin Bi2diagnostic microbiological blood assays. 

Drug/Lab test interactions Over the course of 24 months, patients treated with dipyridamole and aspirin combination therapy showed a decline (mean change from baseline) in hemoglobin of 0.25 g/dL, hematocrit of 0.75%, and erythrocyte count of 0.13 X 10 /mm2. 

Drug/Lab test interactions Asympiomai c reversible increases in AST and ALT aminotransferase levels have occurred in patients treated with LMWHs and heparin. Because aminotransferase determinations are important in the differential diagnosis of Ml, liver disease, and PE, interpret elevations that might be caused by LMWHs with caution. 

Drug/Lab test interactions Significant elevations of aminotransferase (AST and ALT) levels have occurred in a high percentage of patients. Cautiously interpret aminotransferase increases that might be caused by heparin. 

Drug/Lab test interactions Certain endocrine and liver function tests may be affected by estrogen-containing OCs. Expect these similar changes with larger doses Increased sulfobromophthalein retention. 

Drug/Lab test interactions Certain endocrine tests may be affected by levonorgestrel implants Sex hormone binding globulin concentrations are decreased thyroxine concentrations may be slightly decreased and triiodothyronine uptake increased. 

Drug/Lab test interactions PSA serum levels are decreased by approximately 50% in patients with BPH treated with finasteride. 

Drug/Lab test interactions Urine glucose and serum cholesterol levels may increase. Decreased serum levels of potassium, T3, and a minimal decrease of T4 may occur. 

Drug/Lab test interactions A metabolite of tolbutamide in the urine may give a false-positive reaction for albumin if measured by the acidification-after-boiling test. 

Drug/Lab test interactions Succimer may interfere with serum and urinary laboratory tests. 

Drug/Lab test interactions Nitrates may interfere with the Z/af/c/s-Za/ccolor reaction causing a false report of decreased serum cholesterol. 

Drug/Lab test interactions Tnamterene and quinidine have similar fluorescence spectra thus, triamterene will interfere with the fluorescent measurement of quinidine serum levels. 

Drugs that may affect amiodarone include hydantoins, cholestyramine, fluoroquinolones, rifamycins, ritonavir, and cimetidine. Drugs that may be affected by amiodarone include anticoagulants, beta-blockers, calcium channel blockers, cyclosporine, dextromethorphan, digoxin, disopyramide, fentanyl, flecainide, hydantoins, lidocaine, methotrexate, procainamide, quinidine, and theophylline. Drug/Lab test interactions Amiodarone alters the results of thyroid function tests, causing an increase in serum T4 and serum reverse T3 levels and a decline in... 

Drug/Lab test interactions These agents may produce hypoglycemia and interfere with glucose or insulin tolerance tests. Propranolol and betaxolol may interfere with the glaucoma screening test due to a reduction in intraocular pressure. 

Drug/Lab test interactions A labetalol metabolite may falsely increase urinary catecholamine levels when measured by a nonspecific trihydroxyindole reaction. Drug/Food interactions Food may increase bioavailability of the drug. 

Drug/Lab test interactions Methyidopa may interfere with tests for Urinary uric acid by phosphotungstate method serum creatinine by alkaline picrate method AST by colorimetric methods. Because methyidopa causes fluorescence in urine samples at the same wavelengths as catecholamines, falsely high levels of urinary catecholamines may occur and will interfere with the diagnosis of pheochromocytoma. 

Drug/Lab test interactions False-positive results may occur in screening tests for pheochromocytoma in patients who are being treated with prazosin. 

Drug/Lab test interactions Captopril may cause a false-positive test for urine acetone. 

Drug/Lab test interactions Thiazides may decrease serum PBI levels without signs of thyroid disturbance. Thiazides also may cause diagnostic interference of serum electrolyte, blood, and urine glucose levels (usually only in patients with a predisposition to glucose intolerance), serum bilirubin levels, and serum uric acid levels. In uremic patients, serum magnesium levels may be increased. Bendroflumethiazide may interfere with the phenolsulfonphthalein test due to decreased excretion. In the phentolamine and tyramine tests, bendroflumethiazide... 

Drug/Lab test interactions Isoproterenol causes false elevations of bilirubin as measured in vitro by a sequential multiple analyzer. Isoproterenol inhalation may result in enough absorption of the drug to produce elevated urinary epinephrine values. Although small with standard doses, the effect is likely to increase with larger doses. 

Drug/Lab test interactions Diagnostic pregnancy tests based on hCG may result in false-negative or false-positive interpretations in patients on promethazine. 

Drug/Lab test interactions Plasma corticosteroid levels may be increased. Urinary steroid determinations may be altered by amphetamines. 

Drug/Lab test interactions Determinations of plasma amylase or lipase levels may be unreliable for 24 hours after narcotic administration. 

Drug/Lab fesf/nteracf/ons Acetaminophen may interfere with Chemstrip bG, Dextrostix, and Visidex II home blood glucose measurement systems decreases of > 20% in mean glucose values may be noted. This effect appears to be drug-, concentration-, and system-dependent. 

Drug/Lab test interactions Salicylates compete with thyroid hormone for binding... 

Drug/Lab test interactions Naproxen use may result in increased urinary values for 17-ketogenic steroids. Temporarily discontinue naproxen therapy 72 hours before adrenal function tests are performed. 

Drug/Lab test interactions Decreased thrombocyte values may be obtained. Colchicine may cause false-positive results when testing urine for RBC or... 

Drug/Lab test interactions Phenothiazines may produce false-positive phenylketonuria (PKU) test results. Phenothiazines may cause false-positive pregnancy test results. 

Drug/Lab test interactions Phenytoin may interfere with the metyrapone and the 1 mg dexamethasone tests. 

Drug/Lab fesf/nferacf/ons Valproic acid is partially eliminated in the urine as a keto-metabolite, which may lead to a false interpretation of the urine ketone test. There have been reports of altered thyroid function tests associated with valproic acid. 

Drug/Lab test interactions Because false-positive readings were reported with the Ames N-Muitistix SG dipstick test for urinary protein when gabapentin was added to other antiepileptic drugs, the more specific sulfosalicylic acid precipitation procedure is recommended to determine the presence of urine protein. 

Drug/Lab test interactions False-positive tests for urobilinogen may occur during nizatidine therapy. False-positive tests for urine protein with Multistix may occur during ranitidine therapy testing with sulfosalicylic acid is recommended. 

Drug/Lab test interactions False-positive urine glucose reactions may occur with penicillin therapy if Clinitest, Benedict s Solution, or Fehling s Solution are used. It is recommended that enzymatic glucose oxidase tests (such as Clinistix or Tes-Tape) be used. Positive Coombs tests have occurred. High urine concentrations of some penicillins may produce false-positive protein reactions (pseudoproteinuria) with the P.870... 

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