CH20 Peripheral Vascular System Flashcards
Deep veins on leg
femoral vein; popliteal vein.`
Superficial veins on leg
great and small saphenous veins.
Veins keep blood moving by
contracting skeletal muscles; pressure gradient caused by breathing (thoracic pressure decreases, abdominal pressure increases); intraluminal valves create one-way flow.
Called capacitance vessels due to veins’ ability to stretch.
Venous stasis is due to problems with
contraction of skeletal muscles, and/or competent valves in the veins, and/or a patent lumen.
Other risk for venous disease
Hypercoagulable state
Vein wall trauma
Incompetent valves created by dilated and tortuous veins
Lymphatic system function
retrieves excess fluid and plasma proteins from interstitial space—returns it to the circulation.
Conserves fluid and plasma protein
Forms major part of immune system
Absorbs lipids from the small intestine
Lymph vessels drain into the venous system at the
subclavian veins.
Right Lymphatic dict
into right subclavian vein
thoracic duct
drain most of the body; empties into the left subclavian vein
Superficial nodes accessible to palpation
Cervical—head and neck
Axillary—breast and upper arm
Epitrochlear—hand and lower arm
Inguinal—lower extremities, external genitalia, anterior abdominal wall
Organs with involvement in the lymph system
spleen, tonsils, thymus gland
Infants and Children
lymph nodes larger; superficial nodes may be palpable
Aging Adult
peripheral blood vessels become rigid
Arteriosclerosis—increased BP
Enlargement of intramuscular calf veins
29% over 70—have PAD
Increased risk for PAD: smoking, DM, dyslipidemia, HTN
Increased risk for DVT: prolonged BR, prolonged immobilization, heart failure
SD: Pain
PQRST
Symptoms while walking
Night leg pain: ischemic rest pain of PVD or severe night muscle cramping or restless leg symptoms
SD: List all but pain
Skin changes; sores or lesions Edema Enlarged lymph nodes Medications Smoking history
OD:
Cap refill
check OD: Leg Exam
Skin color, temperature Hair distribution Venous pattern Size (swelling or atrophy) Symmetry Skin lesions or ulcers
the epitrochlear node is in the
antercubital fossa and drains the hand and lower arms