3X rule

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3X rule

in normal blood samples, hemoglobin × 3 = hematocrit (± 2%); a rapid check on the accuracy of laboratory results.

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No references found			I generally use the 3x rule to estimate the time requirement for engineering projects: If the engineering department says the task will take three weeks, I estimate that it will actually take nine weeks. Web-site development--best practices. (e Mortgage) by Myer, Warren / Mortgage Banking			3,4-diaminopyridine 3,4-dihydroxyphenylalanine 3,4-methylenedioxymethamphetamine 3,5,3S-triiodothyronine 3,5-dinitrobenzamide 3-day measles 3-hydroxy-4(1H)-pyridone 3-hydroxybutyric acid 3-hydroxyisovaleric acid 3-hydroxytyramine 3-methoxy-4-hydroxymandelic acid 3-methylfentanyl 3-methylindole 3-nitro-1-propanol 3-nitro-4-hydroxyphenylarsonic acid 3-nitropropionic acid 3-omega fatty acids 30-day mortality 36-item Medical Outcomes Study Short-Form General Health Survey 3D conformal external beam radiation therapy 3D radiotherapy 3D ultrasound reconstruction 3D ultrasound reconstruction imaging 3D volume reconstruction 3S,5S-cyclic AMP synthetase 3X rule 4 As 4-alpha-d-glucanotransferase 4-aminopyridine 4-AP 4-Dinitrophenol 4-hydroxy-3-nitrophenylarsonic acid 4-hydroxybutyricaciduria 4-ipomeanol 4-methoxycoumestrol 4-methylpyrazole 4-nitrophenylarsonic acid 4-oxycoumarin 4-pyridoxic acid 4-tritylmorpholine 44-kDa phosphoprotein 4D meat 4n 4S 5'-nucleotidase 5'-nucleotidase test 5,10-methylenetetrahydrofolate reductase deficiency 5-acetyl-deoxynivalenol 5-aminosalicylic acid 5-ASA 5-day fever			3sat 3SCSALT 3SG 3SGT 3SI 3SLS 3SO 3Station 3SUM 3TA 3TC 3TC 3TC 3TTG 3U 3UP 3V 3VL 3VP 3WC 3WF 3WM 3WO 3X 3X DVD 3X Magnifier Lens 3X rule 3x5 3x5 card 3XMAG 3XRTT 3YIDP 4 4 4 4 4 (disambiguation) 4 (disambiguation) 4 (number) 4 (year) 4 (year) 4 A Syndrome 4 A's 4 A.D. 4 A.D. 4 AD 4 AD 4 April 4 As 4 As 4 August 4 Binary, 3 Ternary 4 by 4 4 by 4 4 cycle engine 4 December 4 Digit Batch Code

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