Black Widow Spider Bite

Abnormal

Black Widow spiders can be identified by the red hourglass mark on their bellies (do not go looking for it).  Black Widows are found in "hidden" areas, such as woodpiles, outdoor sheds, barns, trees, and basements.  A Black Widow Spider Bites with minimal provocation.  Upon biting, she injects poisonous venom.  The venom is a toxin to the nervous system, and causes severe symptoms.

History of bites (usually painful) Painful rigid abdomen Severe diffuse muscle pains Excessive salivation Sweating Nausea/vomiting Breathing difficulties Headaches Weakness Anxiety

Examination may show: Fang marks present (often cannot find) High Blood Pressure Tremor Increased salivation Difficulty breathing May see a rash Headache Restlessness Muscle twitching Muscle Cramps Rigid abdomen Abdomen is not tender (in spite of severe pain) Increased sweating In pregnant females, it may cause premature labor by increasing the contraction of the uterus. Laboratory findings: - White blood cell count may be elevated

Children, the elderly, and those with underlying medical problems are at the highest risk.

Pain relief Hot tub bath Calcium Gluconate injection Methocarbamol injection (a muscle relaxant) Antivenom is used in severe cases.  It is derived from horse serum, so there is a risk of an allergic reaction

Seek immediate medical treatment, as it can be life threatening.

Perforated ulcer Appendicitis Pancreatitis Lead Poisoning Porphyria Kidney Stones Tetanus Myocardial Infarction Strychnine poisoning

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