pressure sore

pressure sore

n.

See bedsore.

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pressure sore.

See pressure ulcer.

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pressure,

n a stress or strain that may occur by compression, pull, or thrust; an applied force.

pressure area,

n See area, pressure.

pressure atrophy,

n See atrophy, pressure.

pressure, biting,

n the actual or potential power used in bringing the teeth into contact. See also pressure, occlusal.

pressure, blood,

n See blood pressure.

pressure, deeper,

n a pressure to the body–in excess of that which stimulates Meissner's corpuscles, Merkel's disks, or the hair receptors of light touch–that stimulates the deeper receptors such as Pacini's corpuscles. These latter deep-pressure perception organs lie in the inner layers of the dermis and in the muscle and tendon groups.

pressure, equalization of,

n the act of distributing pressure evenly.

pressure, hand,

n force applied by an instrument held in the hand.

pressure, hydraulic,

n pressure transmitted by a liquid trapped between the tooth and a restoration being cemented.

pressure, hydrostatic,

n the pressure in the circulatory system exerted by the volume of blood when it is confined in a blood vessel. The hydrostatic pressure, coupled with the osmotic pressure within a capillary is opposed by the hydrostatic and osmotic pressure of the surrounding tissues. Fluids flow from the higher pressure areas to the lower pressure areas.

pressure, intrapleural,

n pressure within the pleura.

pressure, occlusal,

n any force exerted on the occlusal surfaces of teeth. See also force, occlusal and load, occlusal.

pressure, osmotic,

n the stress that develops when solutions containing different concentrations of solute in a common solvent are separated by a membrane that is permeable to the solvent but not the solute.

pressure, partial,

n the pressure exerted by each of the constituents of a mixture of gases.

pressure, pulse,

n the difference between systolic and diastolic pressure.

pressure sensibility,

n the ability to detect light touch and deep pressure. See also corpuscle, Meissner's; corpuscle, Merkel's; and corpuscle, Pacini's.

pressure sore,

n a decubitus ulcer caused when the bony protuberances of the body are subjected to chronic pressure from the weight of the body without breaks.

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pressure

stress or strain, by compression, expansion, pull, thrust or shear.

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arterial pressure

the blood pressure in the arteries.

atmospheric pressure

the pressure exerted by the atmosphere, about 15 lb per square inch (2.17 kPa) at sea level.

capillary pressure

the blood pressure in the capillaries.

central venous pressure (CVP)

see central venous pressure.

cerebrospinal pressure

the pressure of the cerebrospinal fluid, normally 100 to 150 mmHg.

diastolic pressure

the lowest pressure recorded in the arterial blood pressure cycle. Represents the minimal pressure in the left ventricle which can maintain its ejection phase. See also blood pressure.

pressure gauge

a device attached to the outlet of gas tanks to measure internal pressure which indicates the quantity of gas remaining.

pressure gradient

the rate of increase (or decrease) in the magnitude of the pressure being measured.

intracranial pressure (ICP)

see intracranial pressure.

intraocular pressure (IOP)

the pressure exerted against the outer coats by the contents of the eyeball.

pressure load

see flowload.

mean circulatory filling pressure

a measure of the average (arterial and venous) pressure necessary to cause filling of the circulation with blood; it varies with blood volume and is directly proportional to the rate of venous return and thus to cardiac output.

pressure natriuresis

thought to participate in regulating the volume of extracellular fluid levels when the normal neurohumoral mediators are impaired; the increase in water and sodium ion excretions which occur when blood pressure is elevated because of an increase in the circulating blood volume.

pressure necrosis

necrosis of tissue caused by exclusion of circulation by external compression, e.g. in prolonged recumbency, or due to too-tight bandage, collar, harness.

negative pressure

pressure less than that of the atmosphere.

oncotic pressure

the osmotic pressure of a colloid in solution.

osmotic pressure

the potential pressure of a solution directly related to its solute osmolar concentration; it is the maximum pressure developed by osmosis in a solution separated from another by a semipermeable membrane, i.e. the pressure that will just prevent osmosis between two such solutions.

pressure point granuloma

see pressure points (below).

pressure point pyoderma

see pressure points (below).

pressure points

parts of the body subject to pressure when the animal is recumbent, wearing harness or saddlery, or during restraint. Usually bony prominences such as the point of the hock, hip, shoulder, elbow and lateral aspects of limbs. These are predisposed to callus formation, infection pyoderma and granulomas.

positive pressure

pressure greater than that of the atmosphere.

pulse pressure

difference between systolic and diastolic pressures in arteries.

pressure receptors

e.g. the blood pressure receptors in the aortic arch and the carotid sinus.

pressure sore

decubitus ulcer.

systolic pressure

the highest reading in the arterial blood pressure cycle. A reflection of the ejection pressure of left ventricular systole, and the elasticity of the arterial system.

venous pressure

the blood pressure in the veins. See also central venous pressure.

wedge pressure

intravascular pressure as measured by a swan-ganz catheter introduced into the pulmonary artery; it permits indirect measurement of the mean left atrial pressure.

pressure wrap

bandages which apply pressure to underlying tissues; used after trauma to limit the development of edema, and in the management of lymphedema.

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sore

a popular term for any lesion of the skin or mucous membrane.

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bed sore

decubitus ulcer.

foam sore

see scalded skin syndrome.

sore foot syndrome

erosion of the pads in recently captured large cats. Caused by ceaseless walking and pivoting on a concrete floor.

sore head

see elaeophoriasis.

sore hocks

see ulcerative pododermatitis.

sore knee

see carpitis.

sore mouth

see contagious ecthyma, vesicular stomatitis.

sore muzzle

in sheep, see bluetongue.

sore nose

common name for facial dermatitis in gerbils. There is hypersecretion of the Harderian gland with accumulation of porphyrin pigment in the skin, causing irritation, self-trauma and secondary infection. Caused by overcrowding and excessive humidity.

pressure sore

decubitus ulcer.

pus sore

see scalded skin syndrome.

summer sore

see swamp cancer.

sweat sore

see scalded skin syndrome.

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Patient discussion about pressure sore.

Q. I ask a client's Dr. to script flexaril for a lower back spasm and he made it for a drug called zanaflex? I am unfamiliar with zanaflex, what is the difference between it and flexaril 25mg? Benefits? Risks? I got him to order the air mattress and extended bed because client is 6'3" and is already bedridden on my 1st day..try to beat the skin breakdown, already stage I decubitis ulcers. I tried to talk the client into slideboard and lift away arm wheelchair...noway..he wants to walk bent with a rolling walker. He already had a lift chair delivered, so he just goes from bed to lift chair. He refuses to let me bathe him. He can't see, and he has me check his draw up on insulin to make sure it's right. He sends the P.T. man right back out the door after he signs the sheet. Difficult pt.!

A. Flexeril and Zanaflex are different drugs but are both muscle relaxants. There are hardly any differences between the two, clinically wise. If the doctor thought one is better than the other for your client I would suggest you take his advice and use the one he gave you.