Rabies Diagnosis Testing Microscopes

The United States Centers for Disease Control and Prevention (CDC) along with the Association of Public Health Laboratories (APHL) have created minimum standard requirements for rabies diagnosis testing. The standardized protocol for the analytical phase of rabies testing uses the direct fluorescent antibody (DFA) test.

Rabies Diagnosis Testing Microscope

Microscope World has created a Rabies Diagnosis Testing Microscope that meets all the CDC and APHL specifications for rabies testing.

The rabies fluorescence microscope used in the DFA test must have reflected light and high quality objective lenses. Numerical aperture, resolution, light sources and filter systems are all important components of the rabies diagnosis testing microscope specifications. Fluorescence FITC filters are used in the testing process.

Learn more about the rabies diagnosis testing microscope here as well as view complete specifications for the full protocol for postmoretem diagnosis of rabies in animals.

Veins under the Microscope

A vein is an elastic blood vessel that transports blood from various regions of the body to the heart. Veins can be categorized into four main types: pulmonary, systemic, superficial and deep veins.

Pulmonary veins carry oxygenated blood from the lungs to the left atrium of the heart, while systemic veins return deoxygenated blood from the rest of the body to the right atrium of the heart. Superficial veins are located close to the surface of the skin and are not found near corresponding arteries. Deep veins are located deep within muscle tissue and are typically located near a corresponding artery with the same name. For example, coronary arteries and veins are deep veins located near the heart.

A vein can range in size from 1 mm up to 15 mm in diameter. The smallest veins in the body are called venules. They receive blood from the arteries via the arterioles and capillaries. The venules branch into larger veins which eventually carry the blood to the largest veins in the body, the vena cava. The blood is then transported from the superior vena cava and inferior vena cava to the right atrium of the heart.

The vein wall consists of three layers. The Tunica Adventitia is the strong out covering, made of connective tissue, collagen and elastic fibers. The Tunica Media is the middle layer, which is composed of smooth muscle and elastic fibers. The Tunica Intima is the inner layer consisting of an elastic membrane lining and endothelium tissue that is covered by elastic tissue.

The images below of veins were captured using the Fein Optic RB30 biological lab microscope and the HDCAM7 HD microscopy camera.

Vein under the RB30 microscope at 40x.

Vein under the RB30 microscope at 100x.

Vein under the RB30 microscope at 400x.

You can learn more about veins here. For more information about microscopes and HD microscopy cameras contact Microscope World.

Middle School Microscope

Richter Optica has introduced the new MDS1 middle school microscope! This microscope can be operated plugged in or cordless, as it comes with rechargeable batteries and a recharger. The LED light is a cool light that will not harm living specimens. The head rotates 360°, making it easy for multiple users to view samples.

MDS1 Middle School Microscope

The middle school microscope has both coarse and fine focusing, making it easier to obtain a crisp and clear image. The microscope is supplied with a 10x eyepiece, providing magnification of 40x, 100x, and 400x.

The rugged frame is all metal and coated in enamel for protection from samples and extended use. A built-in carrying handle makes transporting the microscope simple. This middle school microscope is currently on sale at Microscope World.