https://www.vetsurgeon.org/f/clinical-questions/8182/foston-iv-quick-q Wondered if anyone knew how many mmol/ml Foston is? I have a DKA cat that&#39;s doing well but Phos was 0.55 yday, gave 1ml s/c and today it&#39;s 0.33mmol/l, so I wanted to supplement it IV...The formulary tells me it&#39;s 140mg/ml of toldimphos. Perhaps I needen-USTelligent Community 10https://www.vetsurgeon.org/thread/37297?ContentTypeID=1Sun, 08 May 2011 17:12:12 GMT146601cc-3922-4be7-9974-7e1d4e45a66b:fd7d47da-de1a-49fe-acfa-0d9d8e810b05Alice Courtney<p>Thank you so much for the quick reply and for all your hard work! Looks right to me <img src="https://www.vetsurgeon.org/emoticons/v2/Winking_smiley.gif" alt="Wink" /></p> <p>thanks!</p> <p>&nbsp;</p><div style="clear:both;"></div>https://www.vetsurgeon.org/thread/37292?ContentTypeID=1Sun, 08 May 2011 13:21:00 GMT146601cc-3922-4be7-9974-7e1d4e45a66b:8f030ebe-56e5-4212-923d-b95beaab9eeeRach<p>Spent ages working this out a&nbsp;while ago, made my head hurt, but using doses from some improve CPD I did last year I made this table,&nbsp;&nbsp;hope it helps!<span style="font-family:Calibri;font-size:small;"></span></p> <p class="MsoListParagraphCxSpMiddle"><span style="font-family:&#39;Courier New&#39;;mso-fareast-font-family:&#39;Courier New&#39;;"><span style="mso-list:Ignore;"><span style="font-size:small;">o</span><span style="font:7pt &#39;Times New Roman&#39;;">&nbsp;&nbsp; </span></span></span><span style="font-size:small;"><span style="font-family:Calibri;"><b style="mso-bidi-font-weight:normal;">Supplement if Phosphate &lt;0.65mmol/l</b> for 6hrs</span></span></p> <p class="MsoListParagraphCxSpLast"><span style="font-family:Calibri;font-size:small;">(<span style="background:yellow;mso-highlight:yellow;">Don&rsquo;t put phosphate in Hartmanns line</span> precipitates Ca²⁺)</span></p> <p> <table width="526" cellpadding="0" cellspacing="0" border="1" class="MsoTableGrid" style="margin:auto auto auto 76.3pt;width:394.5pt;border-collapse:collapse;mso-border-alt:solid windowtext .5pt;mso-yfti-tbllook:1184;mso-padding-alt:0cm 5.4pt 0cm 5.4pt;"> <tbody> <tr style="mso-yfti-irow:0;mso-yfti-firstrow:yes;"> <td width="180" valign="top" style="padding-bottom:0cm;background-color:transparent;padding-left:5.4pt;width:134.65pt;padding-right:5.4pt;padding-top:0cm;mso-border-alt:solid windowtext .5pt;border:windowtext 1pt solid;"> <p class="MsoNormal"><b style="mso-bidi-font-weight:normal;"><span style="font-size:small;"><span style="font-family:Calibri;">Blood Phosphate mmol/l</span></span></b></p> </td> <td width="246" valign="top" style="border-bottom:windowtext 1pt solid;border-left:#f0f0f0;padding-bottom:0cm;background-color:transparent;padding-left:5.4pt;width:184.3pt;padding-right:5.4pt;border-top:windowtext 1pt solid;border-right:windowtext 1pt solid;padding-top:0cm;mso-border-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;"> <p class="MsoNormal"><b style="mso-bidi-font-weight:normal;"><span style="font-size:small;"><span style="font-family:Calibri;">Amount of phosphate to<span style="mso-spacerun:yes;">&nbsp; </span>supplement</span></span></b></p> </td> <td width="101" valign="top" style="border-bottom:windowtext 1pt solid;border-left:#f0f0f0;padding-bottom:0cm;background-color:transparent;padding-left:5.4pt;width:75.55pt;padding-right:5.4pt;border-top:windowtext 1pt solid;border-right:windowtext 1pt solid;padding-top:0cm;mso-border-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;"> <p class="MsoNormal"><b style="mso-bidi-font-weight:normal;"><span style="font-size:small;"><span style="font-family:Calibri;">Foston </span></span></b></p> </td> </tr> <tr style="mso-yfti-irow:1;"> <td width="180" valign="top" style="border-bottom:windowtext 1pt solid;border-left:windowtext 1pt solid;padding-bottom:0cm;background-color:transparent;padding-left:5.4pt;width:134.65pt;padding-right:5.4pt;border-top:#f0f0f0;border-right:windowtext 1pt solid;padding-top:0cm;mso-border-alt:solid windowtext .5pt;mso-border-top-alt:solid windowtext .5pt;"> <p class="MsoNormal"><span style="font-family:Calibri;font-size:small;">0.32-0.65</span></p> </td> <td width="246" valign="top" style="border-bottom:windowtext 1pt solid;border-left:#f0f0f0;padding-bottom:0cm;background-color:transparent;padding-left:5.4pt;width:184.3pt;padding-right:5.4pt;border-top:#f0f0f0;border-right:windowtext 1pt solid;padding-top:0cm;mso-border-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;mso-border-top-alt:solid windowtext .5pt;"> <p class="MsoNormal"><span style="font-family:Calibri;font-size:small;">0.01mmol kg/hr</span></p> </td> <td width="101" valign="top" style="border-bottom:windowtext 1pt solid;border-left:#f0f0f0;padding-bottom:0cm;background-color:transparent;padding-left:5.4pt;width:75.55pt;padding-right:5.4pt;border-top:#f0f0f0;border-right:windowtext 1pt solid;padding-top:0cm;mso-border-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;mso-border-top-alt:solid windowtext .5pt;"> <p class="MsoNormal"><span style="font-family:Calibri;font-size:small;">0.002ml/kg/hr</span></p> </td> </tr> <tr style="mso-yfti-irow:2;mso-yfti-lastrow:yes;"> <td width="180" valign="top" style="border-bottom:windowtext 1pt solid;border-left:windowtext 1pt solid;padding-bottom:0cm;background-color:transparent;padding-left:5.4pt;width:134.65pt;padding-right:5.4pt;border-top:#f0f0f0;border-right:windowtext 1pt solid;padding-top:0cm;mso-border-alt:solid windowtext .5pt;mso-border-top-alt:solid windowtext .5pt;"> <p class="MsoNormal"><span style="font-family:Calibri;font-size:small;">&lt;0.32</span></p> </td> <td width="246" valign="top" style="border-bottom:windowtext 1pt solid;border-left:#f0f0f0;padding-bottom:0cm;background-color:transparent;padding-left:5.4pt;width:184.3pt;padding-right:5.4pt;border-top:#f0f0f0;border-right:windowtext 1pt solid;padding-top:0cm;mso-border-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;mso-border-top-alt:solid windowtext .5pt;"> <p class="MsoNormal"><span style="font-family:Calibri;font-size:small;">0.03mmol kg/hr</span></p> </td> <td width="101" valign="top" style="border-bottom:windowtext 1pt solid;border-left:#f0f0f0;padding-bottom:0cm;background-color:transparent;padding-left:5.4pt;width:75.55pt;padding-right:5.4pt;border-top:#f0f0f0;border-right:windowtext 1pt solid;padding-top:0cm;mso-border-alt:solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;mso-border-top-alt:solid windowtext .5pt;"> <p class="MsoNormal"><span style="font-family:Calibri;font-size:small;">0.006ml/kg/hr</span></p> </td> </tr> </tbody> </table> </p> <p> <table width="526" cellpadding="0" cellspacing="0" border="1" class="MsoTableGrid" style="margin:auto auto auto 76.3pt;width:394.5pt;border-collapse:collapse;mso-border-alt:solid windowtext .5pt;mso-yfti-tbllook:1184;mso-padding-alt:0cm 5.4pt 0cm 5.4pt;"> <tbody> <tr style="mso-yfti-irow:0;mso-yfti-firstrow:yes;"> <td width="101" valign="top" style="padding-bottom:0cm;background-color:transparent;padding-left:5.4pt;width:75.55pt;padding-right:5.4pt;padding-top:0cm;mso-border-alt:solid windowtext .5pt;border:windowtext 1pt solid;"> <p class="MsoNormal"><b style="mso-bidi-font-weight:normal;"><span style="font-size:small;"><span style="font-family:Calibri;">Foston </span></span></b></p> </td> </tr> <tr style="mso-yfti-irow:1;"> <td width="101" valign="top" style="border-bottom:windowtext 1pt solid;border-left:windowtext 1pt solid;padding-bottom:0cm;background-color:transparent;padding-left:5.4pt;width:75.55pt;padding-right:5.4pt;border-top:#f0f0f0;border-right:windowtext 1pt solid;padding-top:0cm;mso-border-alt:solid windowtext .5pt;mso-border-top-alt:solid windowtext .5pt;"> <p class="MsoNormal"><span style="font-size:small;"><span style="font-family:Calibri;">0.002ml/kg/hr</span></span></p> </td> </tr> <tr style="mso-yfti-irow:2;mso-yfti-lastrow:yes;"> <td width="101" valign="top" style="border-bottom:windowtext 1pt solid;border-left:windowtext 1pt solid;padding-bottom:0cm;background-color:transparent;padding-left:5.4pt;width:75.55pt;padding-right:5.4pt;border-top:#f0f0f0;border-right:windowtext 1pt solid;padding-top:0cm;mso-border-alt:solid windowtext .5pt;mso-border-top-alt:solid windowtext .5pt;"> <p class="MsoNormal"><span style="font-size:small;"><span style="font-family:Calibri;">0.006ml/kg/hr</span></span></p> </td> </tr> </tbody> </table> </p> <p>Rach</p> <p>p.s. Just found the info that I calculated it from - not sure of the source but just in case you wanted to double-check! </p> <p class="MsoNormal" style="text-align:justify;margin:0cm 0cm 10pt;"><span style="font-family:Calibri;font-size:small;">Foston is 140mg/ml phosphorous as toldimphos</span></p> <p class="MsoNormal" style="text-align:justify;margin:0cm 0cm 10pt;"><span style="font-family:Calibri;font-size:small;">1mmol phosphate = 31mg phosphorus = 0.22ml Foston</span></p> <p class="MsoNormal" style="text-align:justify;margin:0cm 0cm 10pt;"><span style="font-family:Calibri;font-size:small;">So 0.01mmol phosphate = 0.002ml Foston</span></p> <p>&nbsp;</p><div style="clear:both;"></div>