black widow spider


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Related to black widow spider: brown recluse spider, black widow spider bite

spider

 [spi´der]
1. an arthropod of the class Arachnida.
spider bite in the United States, the two spiders whose bites are most likely to cause a serious reaction are the black widow spider(Latrodectus mactans) and the brown recluse spider(Loxosceles reclusa). Signs and symptoms are associated with the effects of injection of the venom and include pain at the injection site, weakness, muscle pain and cramps, elevated blood pressure, and restlessness. Bites by these spiders must be treated promptly and effectively. First aid is the same as that for a snakebite and includes the following:

1. Wash the wound with soap and water and apply a clean dressing.

2. Apply a constricting band between the area of the bite and the heart.

3. Keep the person calm and transport him to the hospital or medical facility as soon as possible.

4. If swelling becomes apparent, apply a cold compress to the area.
black widow spider Latrodectus mactans, a poisonous spider found in North America; see spider bite.
brown recluse spider Loxosceles reclusa, a poisonous spider found in North America; see spider bite.
vascular spider a telangiectasis due to dilatation and branching of superficial cutaneous arteries, which presents as a bright red central portion with branching radiations, the whole somewhat resembling the configuration of a spider. The lesions may occur singly or in large numbers, and may be nevoid or acquired, being commonly associated with pregnancy and liver disease. Called also nevus araneus, spider nevus, and spider telangiectasia.
A venomous spider indigenous to North America—most bites occur in California, most commonly in summer. The black widow spider measures 13 mm in length with a leg spread of 40 mm; it bites with its anterior fangs and may be fatal in very young children and older adults
Management Supportive—topical cleansing, ice, aspirin, opiate analgesics, hot baths, mild sedation, bed rest; for muscle spasms, calcium gluconate, methocarbamol or phenadrine; for hypertensive crises, short-acting antihypertensives; antivenin-Lyovac may be indicated in some patients

black widow spider

Latrodectus mactans Toxicology A venomous spider indigenous to North America–most bites occur in California, more common in summer–which is 13 mm in length with a leg spread of 40 mm and  which bites with anterior fangs and may be fatal in the very young or old Clinical Abrupt sharp, cramping and/or burning pain, dizziness, weakness, spreading to the entire body, activation of autonomic nervous system–N&V, sweating, salivation, tremors, muscle cramping and spasms, twitching, paresthesias, eyelid edema, ptosis; severe cases are accompanied by SOB, tachypnea, respiratory grunting, tachycardia, systolic HTN, acute nephritis and hemoglobinuria in small children Management Supportive, mild sedation, bed rest; for muscle spasms, calcium gluconate, antihypertensives; antivenin-Lyovac may be indicated in some Pts

black wid·ow spi·der

(blak wid'ō spī'dĕr)
A venomous arachnid, attacks always come from female (Latrodectus mactans); reported throughout the United States, but more common in the South; marked on underside with a white 'hourglass' shape. Only small children and immunocompromised patients are likely to die from her bite, although the acute form of the paralysis can cause severe pain.
References in periodicals archive ?
Defensive behavior of the black widow spider, Latrodectus hesperus.
Acute toxic fulminant myocarditis after a black widow spider envenomation: case report and literature review.
(4-6) Black widow spiders are most active in the warmer months, tend to avoid occupied buildings, and are usually not aggressive, biting only when disturbed in their habitats of outbuildings, garages, and wood piles.
Black widow spider Latrodectus cinctus (Araneae: Theridiidae) new to Liberia--savanna species in the forest zone.
A retrospective case series that evaluated 163 patients who had been bitten by a black widow spider found that IV opioids and benzodiazepines (most often diazepam) relieved symptoms in most patients.
Although the black widow spider is primarily a veld species, a surprisingly high number of victims are bitten in the home environment.
When he emerged from the scanner, he reached inside his gown, pulled out a black widow spider, which he threw to the floor.
Pity the male black widow spider, for his mate is a harsh mistress.
Concrete proof of this can be found in the world-wide reaction not to a black widow spider, but to a white-sari-clad nun who was called Mother by millions.
Rose Mannion is an Irish lass (and black widow spider) who in an icy rage has her true love executed for betraying "the cause" and then spends the rest of her life manipulating and belittling the men she marries.
These were the ones that covered the Black Widow Spider, the Funnel Web Spider, the Bolas Spider, the Brown Recluse Spider, the Water Spider, the Nursery Web Spider, the Wolf Spider, the Purse Web Spider, the Orb Weaver Spider, the Crab Spider, and the Tarantula.