![]() While it is not known if the skin redness predisposes to photosensitivity, patients should be advised to avoid direct sun while their skin remains discolored. It therefore has potential to cause photosensitivity. Hydroxocobalamin absorbs visible light in the UV spectrum.This should be considered before hemodialysis is initiated in patients treated with hydroxocobalamin. Because of its deep red color, hydroxocobalamin may cause hemodialysis machines to shut down due to an erroneous detection of a “blood leak”.While determination of blood cyanide concentration is not required for management of cyanide poisoning and should not delay treatment with CYANOKIT, collecting a pretreatment blood sample may be useful for documenting cyanide poisoning as sampling post-CYANOKIT use may be inaccurate.Be aware of this when reporting and interpreting laboratory results. Because of its deep red color, hydroxocobalamin has been found to interfere with colorimetric determination of certain laboratory parameters (e.g., clinical chemistry, hematology, coagulation, and urine parameters).Substantial increases in blood pressure may occur following CYANOKIT therapy.Monitor renal function for 7 days following CYANOKIT therapy. Acute renal failure with acute tubular necrosis, renal impairment and urine calcium oxalate crystals have been reported following CYANOKIT therapy.Allergic reactions including angioneurotic edema have also been reported in postmarketing experience. Allergic reactions may include: anaphylaxis, chest tightness, edema, urticaria, pruritus, dyspnea, and rash.Consider alternative therapies, if available, in patients with known anaphylactic reactions to hydroxocobalamin or cyanocobalamin.Risk of Anaphylaxis and Other Hypersensitivity Reactions Consideration should be given to decontamination measures based on the route of exposure. In conjunction with CYANOKIT, treatment of cyanide poisoning must include immediate attention to airway patency, adequacy of oxygenation and hydration, cardiovascular support, and management of seizures.IF YOU SUSPECT CYANIDE POISONING, ADMINISTER CYANOKIT IMMEDIATELY. *List may not be comprehensiveAlso indicative of cyanide poisoning is a plasma lactate concentration ≥10 mmol/L (a value higher than that typically listed in the table above of signs and symptoms of isolated cyanide poisoning because carbon monoxide associated with smoke inhalation also contributes to lactic acidemia). Recognizing Cyanide Poisoning in Smoke-Inhalation VictimsCyanide poisoning in smoke-inhalation victims should be suspected if the following manifestations are present 1*: 1Ĭommon Signs and Symptoms of Cyanide and Carbon Monoxide Poisoning 1,5 CYANIDE Despite the similarities, quick diagnosis is essential. With signs and symptoms similar to carbon monoxide poisoning, cyanide poisoning can be difficult to recognize. 3 Cyanide is often released when everyday items found in most homes and businesses combust, making smoke inhalation the most common cause of acute cyanide poisoning. Where There’s Smoke, There May Be Cyanide 3Although carbon monoxide is a well-known toxin in fire smoke, cyanide can be an overlooked danger. If cyanide poisoning is suspected, treatment should not be delayed to obtain a plasma lactate concentration. Plasma lactate level could be monitored, as it increases proportionally with the degree of cyanide poisoning, but it is not a definite diagnostic tool. Treatment decisions must be made on the basis of clinical history and signs and symptoms of cyanide intoxication. ![]() There is no widely available, rapid, confirmatory cyanide blood test.
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