Diagnostic composition for identifying amniotic fluid

A composition comprising:

• at least one polymer selected from cellulose, a cellulose ester, or a copolymer thereof;
• a plasticizer, wherein the plasticizer has a molecular weight of less than or equal to 600 g/mol;
• a surfactant, wherein the surfactant is a poloxamer;
• an acid represented by a structural formula that includes a ring moiety selected from an unsubstituted or substituted C6-C14 aromatic ring moiety, an unsubstituted or substituted C3-C8 carbocyclic ring moiety, an unsubstituted or substituted 5- to 8-membered heterocyclic ring moiety having 1 to 4 heteroatoms selected from nitrogen, sulfur or oxygen, or an unsubstituted or substituted 5- to 14-membered heteroaromatic ring moiety having 1 to 4 heteroatoms selected from nitrogen, sulfur, or oxygen;
• an ion-balance reagent, wherein the ion-balance reagent is a quaternary amine;
• and
• an indicator agent.

A composition comprising:

• cellulose acetate and cellulose acetate butyrate;
• a plasticizer, wherein the plasticizer is triethyl citrate;
• a surfactant, wherein the surfactant is poloxamer 407;
• an acid, wherein the acid is salicylic acid;
• an ion-balance reagent, wherein the ion-balance reagent is tridodecylmethyl ammonium chloride;
• and
• an indicator agent, wherein the indicator agent is nitrazine yellow.