Delayed reaction

Vernassiere C, Trechot P. Commun N. et al Low negative predictive value of skin tests in investigating delayed reactions to radiocontrast media. Contact Dermatitis 2004 50 359-366. 

Delayed reactions with radiocontrast media occur in 1% to 3% of patients.21 Although reactions occasionally are severe, most are mild and manifest as maculopapular rashes, fixed eruptions, erythema multiforme, and urticarial eruptions. 

Sickle cell hemolytic transfusion reaction syndrome is a unique problem in SCD patients. Owing to alloimmunization, an acute or delayed transfusion reaction may occur. Delayed reactions typically occur 5 to 20 days after transfusion. Alloantibodies and autoantibodies resulting from previous... 

Just like mammals, birds have a delayed reaction to lipotropHc pesticides such as OCPs and their metabolites. These toxic substances dissolve and accumulate in the fatty tissues of well-fed birds, and are comparably harmless in this form. However, once the bird starts using the stored fat (at the end of a long flight or when laying eggs), the substances are carried through the bloodstream to the brain, liver, or yolk of the egg, and poison all the systems [1]. In particular, well-fed raptors have lower DDE concentrations in their liver (0.5 mg/kg) than less well-fed (3.5 mg/kg) and emaciated birds (7.3 mg/kg) [6]. 

My reactions are not sudden, they re more subtle. So I sometimes ignore a fragrance when it first hits me, thinking that maybe I ll be okay. I just try to act normal. But then I get hit with a delayed reaction. 

Reaction conditions, e.g. - Change in pH value - Temperature increase/ decrease Pressure increase/ decrease Reaction/Residence time Delayed reaction start Increase of by-products/ residues ... 

Symptoms occurring shortly after a product is used are more likely to be reported, whereas delayed reactions may not be associated with a product and not reported. 

Type D (delayed) reactions are teratogenic or carcinogenic responses. 

Delayed reaction (fever, myalgias, arthralgias, nausea) may occur 1-2 days after administration... 

After-, Post-, or Delayed-Reactions in Detonation. See Delayed-, After-, or Post-Reactions in Detonation... 

Delayed reactions—reactions that occur some time after exposure, even if the drug is withdrawn before the reaction appears... 

An antibody directed at the murine epitope of infliximab may develop in patients. A delayed infusion reaction, which occurs 1-2 weeks after infusion, develops in approximately 5% patients who are re-treated with infliximab. Delayed infusion reaction is more common in patients with circulating anti-infliximab antibodies (20-30% of those getting multiple infusions) than in those without the antibodies. These reactions consist of myalgia arthralgia fever rash urticaria and facial, hand, and lip edema. Delayed reactions respond to symptomatic treatment with antihistamines or corticosteroids. Positive antinuclear antibodies (ANA) and anti-dsDNA develop in a small number of patients. Development of a lupus-like syndrome has been reported that resolved after discontinuation of the drug. 

Severe poison.3 Decomposes readily to carbon monoxide lung irritant affects central nervous system causes liver and kidney damage. Inhalation may cause dizziness, nausea, vomiting delayed reaction may occur with chest pain, cough, and difficult breathing, possibly even cyanosis and circulatory collapse.6 TLV-TWA 0.1 ppm (0.23 mg/m3) TLV-STEL 0.2 ppm (0.45 mg/m3).7... 

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