Upper respiratory tract, doses

Styrene vapor is very irritating to eyes, mucous membranes, and upper respiratory tract. Do not breathe the vapor and do not get it on your skin. Exposure can cause nausea and headaches. All operations with styrene must be conducted in a hood. 

Acetone causes eye and skin irritation and is irritating to mucous membranes and upper respiratory tract. Do not breathe the vapors. It is also extremely flammable. Wear appropriate gloves and safety glasses. 

Toxicelogy. LD50 (orai, rat) > 2000 mg/kg irritant to mouth, upper digestive tract significant irritant to skin on proionged/repeated exposure, eyes, nose, upper respiratory tract do not breathe dust... 

The critical factor in the development of the syndrome is the size of the ultrafine zinc oxide particles produced when zinc is heated to temperatures approaching its boiling point in an oxidizing atmosphere." The particles must be small enough (zinc oxide powder is either inhaled or taken orally. Only freshly formed fume causes the illness, presumably because flocculation occurs in the air with formation of larger particles that are deposited in the upper respiratory tract and do not penetrate deeply into the lungs. ... 

Reserve for serious infections where less toxic antimicrobial agents are inappropriate. Do not use in patients with nonbacterial infections (ie, most upper respiratory tract infections). 

Parenteral Route. Parenteral vaccination remains the immunization method of choice for most antigens because it provides more effective immune response than do any other routes of vaccination in most cases. Every years millions of people receive inactivated influenza vaccine by parenteral administration. Subcutaneous vaccination with inactivated influenza vaccine is known to induce simultaneous immune responses in the blood and upper respiratory tract of subjects. The immune response, i.e., the increase in the number of influenza virus-specific antibody-secreting cells in peripheral blood and tonsils, increased rapidly to reach a peak within 1 week after vaccination.Parenteral vaccination of a DNA vaccine encoding glycoprotein D of herpes simplex virus type 2 resulted in systemic cellular and humoral responses. The mucosal humoral responses generated by intramuscular and intradermal vaccination were comparable with those obtained by mucosal vaccination. The DNA vaccine was able to... 

Effects in adult nonsmokers are not as conclusive in terms of alterations in lung function, but irritation of the eyes and of the upper and lower respiratory tract do occur, and ETS both increases the risk of... 

Upper respiratory tract disorders are diagnosed as upper respiratory infections (URIs) and include acute rhinitis, sinusitis, acute tonsillitis, and acute laryngitis. Do not confuse acute rhinitis with allergic rhinitis. 

It is not uncommon for coughs to persist for several weeks in children after a chest infection. However, the child may have an allergy and be developing asthma. If so, the most likely cause is house dust mite or dander (fur particles) from a household pet. You should ask the mother for further clues for example is he worse in any particular room of the house, or worse after dust is raised, say with vacuuming or with changing the bed sheets Do any other family members suffer from asthma, hayfever or eczema On the other hand the child may have another viral upper respiratory tract infection, but as you are unable to decide the cause you should advise the mother to take him back to the doctor. 

Its euphoric properties are due primarily to inhibition of catecholamine uptake, particularly dopamine, in the CNS. Other local anesthetics do not block the uptake of norepinephrine and do not produce the sensitization to catecholamines, vasoconstriction, or mydriasis characteristic of cocaine. Currently, cocaine is used primarily for topical anesthesia of the upper respiratory tract, where its combination of both vasoconstrictor and local anesthetic properties provide anesthesia and shrinking of the mucosa. Because of its abuse potential, cocaine is listed as a schedule II drug by the U.S. Drug Enforcement Agency. 

TREATMENT OF NONRESPONSIVE INFECTIONS Most viral diseases are self-limited and do not respond to any of the currently available anti-infective compounds. Thus, antibiotic therapy of at least 90% of infections of the upper respiratory tract and many GI infections is ineffective. 

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