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Items starting with P

Prolactin

Males: 73 - 407 mU/L

Females: 109 - 557mU/L

(Source: Abbott Diagnostics)

Biochemistry

http://www.labtestsonline.org.uk/understanding/analytes/prolactin/tab/sample

Promethazine

High dose therapeutic use of promethazine associated with concentrations of up to 0.2 mg/L. Toxicity associated with concentrations > 1 mg/L. (Schulz et al. Critical Care 2012, 16:R136).

Toxicology

Propranolol

Therapeutic range: 0.02 - 0.3 mg/L. Toxicity associated with concentrations > 1.0 mg/L. (Schulz et al. Critical Care 2012, 16:R136).

Toxicology

Prostate Specific Antigen (PSA)

Urology West Midlands EAG recommendations (based on NICE guidelines) for 2 week wait referrals based on PSA levels are:

Age (years)	PSA (ug/L)
< 40	use clinical judgement
40 - 49	> 2.5
50 - 59	> 3.5
60 - 69	> 4.5
70 - 79	>6.5
80+	use clinical judgement

Biochemistry

Protein Electrophoresis

Reported only as a comment

Immunology

http://www.heftpathology.com/images/SwapnaFlowDiagram_3.6.15.jpg

Proteinase 3 PR3 antibody

Negative = <2.0 U/mL

Weak positive =2.0 - 3.0 U/mL

Positive = >3.0 u/mL

A normal result would be negative

reference range as quoted by Manufacturer PHADIA http://www.phadia.com/Global/A%20Document%20Library/Autoimmunity/Promotion%20Material/Product%20-%20Peformance%20-%20Detailer%20Info/Performance_Folder_%20EliA%20PR3S%20MPOS.pdf