Chapter 5 Flashcards
Megaloblastic anemia
Combining form: Megal/o- large
Root: Blast - immature
Suffix: Ic - pertaining to
Definition: A blood disorder characterized by anemia in which the red blood cells are larger than normal
Usually a result of deficiency of folic acid or vitamin B12
Pernicious anemia
Definition: Caused by lack of the intrinsic factor protein (IF) that helps the body absorb vitamin B12 from the gastrointestinal tract, a necessary vitamin for the formation of red blood cells
Sickle cell anemia
Definition: A serious genetic disorder that causes abnormal hemoglobin, causing an abnormal sickle shape in some red blood cells,
This interferes with normal blood flow, resulting in damage to most of the body systems
Thalassemia
Definition: Inherited blood disorder that causes mild or severe anemia due to reduced hemoglobin and fewer red blood cells than normal
Hypertension (HTN)
Prefix: hyper - excessive, higher than normal
Root: tension - pressure
Definition: High blood pressure
The elevation of arterial blood pressure to a level that is likely to cause damage to the cardiovascular system
Primary/idiopathic/essential HTN is consistently elevated blood pressure of unknown cause,
Secondary is caused by another problem, malignant is very high, can be fatal
Hypotension
Prefix: hypo - lower than normal
Root: tension - pressure
Definition: Lower-than-normal arterial blood pressure
Symptoms - dizziness, light-headedness, fainting
Orthostatic/postural hypotension
Definition: Low blood pressure that occurs when standing up
Orthostatic- relating to an upright or standing position
Angiography
Definition: Radiographic (x-ray) study of the blood vessels after the injection of a contrast medium to make these blood vessels visible
Angiogram - the resulting film used to study blood flow in arteries, veins, and blood vessels of the heart
Cardiac catheterization
Definition: Diagnostic and treatment procedure in which a catheter is put into a vein or artery and then guided into the heart
Used to preform angiography and treatment of blocked arteries
Digital subtraction angiography (DSA)
Definition: Uses angiography with computer assistance to clarify the view of the area of interest in the cardiovascular system by “subtracting” the soft tissue and bones from the image
Duplex ultrasound
Definition: A diagnostic procedure to image the sutures of the blood vessels and the flow of blood through these vessels
Combination of diagnostic ultrasound of blood vessels and Doppler ultrasound so show the movement of red blood cells through them
Venography/phlebography
Root: pleb - vein
Combining form: Phleb/o - vein
Suffix: Graphy - process of recording
Definition: A radiographic test that provides an image of specific veins after a contrast dye is injected, producing a venogram
Very accurate test for detecting deep vein thrombosis
Electrocardiography
Root: elect - electric
Combining form: Electr/o - electric
Root: cardi - heart
Combining form: Cardi/o - heart
Suffix: Graphy - process of recording a picture
Definition: Noninvasive process of recording the electrical activity of the myocardium
(Does not require insertion of an instrument or device)
Electrocardiogram
Root: elect - electric
Combining form: Electr/o - electric
Root: cardi - heart
Combining form: Cardi/o - heart
Suffix: Gram - picture of record
Definition: A record of electrical activity of the myocardium
Transcatheter aortic valve replacement (TAVR)
Definition: a relatively new, minimally invasive procedure in which the existing valve is left in place and a fully collapsible replacement valve is delivered to the valve site through a catheter
After it is expanded within the defective valve, it takes over the function
Cardiopulmonary resuscitation (CPR)
Definition: an emergency procedure for life support consisting of artificial respiration and manual external cardiac compression
Compression-only resuscitation can be effective in keeping a patient suffering from cardiac arrest alive until professional responders arrive
Artificial resuscitation is recommended for children, drowning victims, and drug overdoses
Aneurysmectomy
Root: aneurysm -aneurysm
Suffix: ectomy - surgical removal of
Definition: the surgical removal of an aneurysm
Aneurysmorraphy / aneurysmoplasty
Root: aneurysm -aneurysm
Combing Form: aneurysm/o - aneurysm
Suffix: rraphy - surgical suturing
Definition: the surgical suturing of an aneurysm
Aneurysm clipping
Definition: surgical method to isolate an aneurysm from the rest of the circulatory system by placing a small titanium clip along its neck, which remains permanently to prevent blood from flowing into the aneurysm
Arteriectomy
Root: arteri - artery
Suffix: ectomy - surgical removal of
Definition: surgical removal of part of an artery
Hemostasis
Root: hem- blood
Combination form: hem/o - blood
Suffix: stasis - stopping or controlling
Definition: to stop or control bleeding
By the formation of a blood clot by the body, or external application of pressure
Plasmapheresis
Definition: plasma exchange
The removal whole blood from a body and the separation of blood’s cellular elements
Red blood cells and platelets suspended in saline or plasma substitute and returned to circulatory system, cleansing of antibodies
Pulmonary Circulation
Definition: The flow of blood only between the heart and lungs
Pulmonary Arteries
Carry deoxygenated blood out of the right ventricle and into the lungs. This is the only place in the body where deoxygenated blood is carried by arteries instead of veins.
Pulmonary Veins
Carry the oxygenated blood from the lungs into the left atrium of the heart. This is the only place in the body where veins carry oxygenated blood.
Systematic Circulation
Definition: The flow of blood to all parts of the body except the lungs
Heartbeat
Definition: The ability to pump blood effectively throughout the body; the contraction and relaxation (beating) of the heart must occur in exactly the correct sequence
Sinoatrial (SA) Node
- Establishes basic rhythm and rate of the heartbeat
- Located in the posterior wall of the right atrium near the entrance of the superior vena cava
Atrioventricular Node
- Transmits electrical impulses onward to the bundle of His
Bundle of His (HISS)
- Group of fibers located within the interventricular septum
- These carry an electrical impulse to the Purkinje fibers to ensure the sequence of the heart contractions
Thrombocytes
Also known as platelets, are the smallest formed elements of the blood.
Blood types
Classified according to the presence or absence of certain antigens.
Rh Factor
Defines the presence or absence of the Rh antigen on red blood cells.
Blood Gases
Gases that are normally dissolved in the liquid portion of blood
Cardiologist
Physician who specializes in diagnosing and treating abnormalities, diseases, and disorders of the heart.
Hematologist
Physician who specializes in diagnosing and treating abnormalities, diseases, and disorders of the blood and blood forming tissues.
Vascular Surgeon
Physician who specializes in the diagnosis, medical management, and surgical treatment of disorders of the blood vessels.
Congenital Heart defects
Structural abnormalities caused by failure of the heart to develop normally before birth
Coronary artery disease
Atherosclerosis of the coronary arteries that reduces blood supply to the heart muscle.
Atherosclerosis
Hardening and narrowing of the arteries caused by a buildup of cholesterol plaque on the interior walls of the arteries.
Plaque
A fatty deposit, found within the lumen of an artery, which is similar to a the build up of rust inside a pipe.
Atheroma
Characteristic of atherosclerosis and is a deposit of plaque on or within the arterial wall.
Ischemia
Condition in which there is an insufficient supply of oxygen in the tissues due to restricted blood flow to a part of the body.
Angina
Condition where severe episodes of chest pain occur due to an inadequate blood flow to the myocardium.
Myocardial Infarction
Commonly known as a heart attack, occlusion (blockage) of one or more coronary arteries caused by plaque build up.
thrombocytopenia
-Combining form(s): thromb/o means clot, cyt/o means cell
-Suffix: -penia- means deficiency
-definition: a condition in which there is an abnormally small number of platelets circulating in the blood.
-this condition is sometimes associated with abnormal bleeding
thrombocytosis
combining form: thromb/o- means clot
root word: cyt- means cell
suffix: -osis - means abnormal condition
definition: an abnormal increase in the number of platelets in the circulating blood
hemorrhage
combining form: hem/o- means blood
suffix: -rrhage: means bleeding
definition: the loss of a large amount of blood in a short time.
transfusion reaction
a serious and potentially fatal complication of a blood transfusion in which a severe immune response occurs because the patient’s blood and the donated blood do not match
cholesterol
definition: a fatty substance that travels through the blood and is found in all parts of the body
-aids in the production of cell membranes, some hormones, and vitamin D.
-some comes from dietary sources and some is created by the liver.
-excessively high levels of certain types of cholesterol can lead to heart disease.
Total cholesterol
is measured in terms of milligrams per deciliter of blood.
desirable levels are below 200 mg/dL
borderline high levels are 200-239 mg/dL
high levels are 240 mg/dL and above.
low density lipoprotein cholesterol (LDL)
referred to as bad cholesterol because excess quantities of LDL contribute to plaque buildup in the arteries
optimal levels: below 100 mg/dL
near optimal: 100-129 mg/dL
borderline high: 130-159 mg/dL
high levels: 160-189 mg/dL
very high: 190 mg/dL and above
high density lipoprotein cholesterol (HDL)
referred to as good cholesterol because it carries unneeded cholesterol back to the liver for processing and does not contribute to plaque buildup
low- below 40 mg/dL
high- 60 mg/dL