Master Snake Bite Injury with Picmonic for Medicine

With Picmonic, facts become pictures. We've taken what the science shows - image mnemonics work - but we've boosted the effectiveness by building and associating memorable characters, interesting audio stories, and built-in quizzing.

Snake Bite Injury

Snake
MarcDsharK
Venomous snake bites are a considerable source of mortality worldwide. Patients who have been bitten may present with local edema, erythema, and tissue necrosis. Systemic findings include neurotoxicity, distributive shock, and DIC. The diagnosis is usually made by clinical impression. Management includes antivenom and close observation.
9 KEY FACTS
LOCAL FINDINGS
Edema
Edamame

Local swelling is present in most snake bites. In the United States, rattlesnakes and coral snakes are notorious for causing tissue edema.

Erythema
Earth-red

Erythema is common around the site of injury. This is caused by the release of inflammatory mediators such as histamine, prostaglandins, and nitric oxide.

Tissue Necrosis
Tissue-box Necrosis-crow

A rattlesnake bite may notably cause tissue necrosis at the site of injury. This is due to powerful hematologic effects of its venom.

SYSTEMIC FINDINGS
Neurotoxicity
Neuron with Toxic-green-glow

Neurotoxicity may refer to local paresthesias at the site of injury or more systemic findings like seizures or altered mental status. Paralysis and significant respiratory inhibition may also occur.

Distributive Shock
Distributing-pipes

Patients who are bitten by venomous snakes may present with distributive shock. This is due to increased capillary permeability and subsequent "third spacing" of plasma. Patients may also develop cardiogenic shock due to the direct activity of the venom on the cardiac muscle.

Disseminated Intravascular Coagulation (DIC)
Dice In-vascular Clogs

Snake venom may lead to consumptive coagulopathy and DIC. Patients will exhibit spontaneous bleeding from puncture sites and increased PT/PTT with low platelets.

DIAGNOSIS
Diagnosis by Clinical Impression
Diagnostic-computer displaying Clinical Impression

This disease requires no laboratory tests to confirm as a positive history for venomous snake exposure plus a characteristic wound and local signs/symptoms is enough to diagnose and begin treatment.

MANAGEMENT
Antivenom
Ant-tie Venom

Once the diagnosis of snakebite is established, patients should be treated with antivenom. Patients clinically determined to have minimal envenomation should be monitored before treatment with antivenom. Antivenom itself is composed of antibody fragments to the venom itself.

Closely Monitor Patient
Monitor Close to Patient

Patients should be monitored closely for a minimum of 12 hours. The length of the patient's inpatient stay depends on the degree of envenomation and the treatment required. Certain complications such as DIC can take hours to days to develop.

Unlock all 9 facts & definitions with Picmonic Free!

JOIN FREE

Take the Snake Bite Injury Quiz

Picmonic's rapid review multiple-choice quiz allows you to assess your knowledge.

START QUIZ NOW

It's worth every penny

Our Story Mnemonics Increase Mastery and Retention

Memorize facts with phonetic mnemonics

Unforgettable characters with concise but impactful videos (2-4 min each)

Ace Your Medicine (MD/DO) Classes & Exams with Picmonic:

Over 1,090,000 students use Picmonic’s picture mnemonics to improve knowledge, retention, and exam performance.

Choose the #1 Medicine (MD/DO) student study app.

Picmonic for Medicine (MD/DO) covers information that is relevant to your entire Medicine (MD/DO) education. Whether you’re studying for your classes or getting ready to conquer the USMLE Step 1, USMLE Step 2 CK, COMLEX Level 1, or COMLEX Level 2, we’re here to help.

Works better than traditional Medicine (MD/DO) flashcards.

Research shows that students who use Picmonic see a 331% improvement in memory retention and a 50% improvement in test scores.