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63CRITICAL THINKING AND APPLICATION | STUDENT MANUAL C A R D IA C VI. CARDIAC A. Normal blood flow through the heart: The two major veins that bring blood to the right side of the heart are the superior and inferior vena cava (This blood is deoxygenated)The blood enters the right atrium Then the right ventricle From the RV the blood is pumped into the pulmonary artery (this artery carries deoxygenated blood) Then the blood goes to the lungs where it is oxygenated Next through the pulmonary veins (they carry oxygenated blood) It then goes to the left atrium to the left ventricle (the big bad pump) It is then pumped into the aorta And finally this oxygenated blood is delivered throughout the body through the arterial system where it eventually ties back into the venous system. AFTERLOAD PRELOAD C A R D IA C 64 Copyright protected. Reproduction prohibited without authorization and release by Hurst Review Services. B. Cardiac Terms: 1. Preload is the amount of blood _____________ to the right side of the heart and the muscle _______________ that the volume causes. ______________ is released when we have this stretch. 2. Afterload is the __________ in the aorta and peripheral arteries that the left ventricle has to pump against to get the blood out. • This pressure is referred to as resistance. • With hypertension there’s even more _______________ for the left ventricle to pump against. That’s why ______________ can eventually lead to HF and pulmonary edema, because high afterload ______________ cardiac output and decreases forward flow. Plus, it wears your heart out. 3. Stroke volume is the ____________ of blood pumped out of the ventricles with each beat. C. Cardiac Output: • CO = HR x SV • Tissue ____________ is dependent on an adequate cardiac output. • Cardiac output changes according to the body’s __________________. 1. Factors that affect cardiac output: a. Heart rate and certain arrhythmias b. Blood ___________ 1) Less volume = ___________ CO 2) More volume = ___________ CO c. ______________ contractility • MI, medication, cardiac muscle disease 65CRITICAL THINKING AND APPLICATION | STUDENT MANUAL C A R D IA C 2. Pathophysiology of decreased CO: • If your CO is decreased, will you perfuse properly? ________ a. Brain: LOC will go_______ b. Heart: Client reports ________ pain c. Lungs: Lungs sound ____________ Short of breath? ______ d. Skin: ________ and clammy e. Kidneys: UO goes _____ f. Peripheral pulses: ____________ Arrhythmias are no big deal UNTIL they affect your cardiac output. g. Three Arrhythmias that are always a big deal: 1) ________________________________________ 2) ________________________________________ 3) ________________________________________ D. Coronary Artery Disease: • Coronary artery disease is the most common type of cardiovascular disease. • Coronary artery disease is a broad term that includes chronic stable angina and acute coronary syndrome. 1. Chronic Stable Angina: a. Pathophysiology: 1) Intermittent decreased blood flow to the myocardium leads to ischemia or necrosis? __________________ This ischemia can lead to temporary pain/pressure in chest. 2) What brings this pain on? Low ____________ usually due to _______________. 3) What relieves the pain? ______________ and/or nitroglycerin SL. Medication Effects on Cardiac Output Preload: Vasodilate or diurese to reduce (decrease) preload 1) Diuretics (furosemide) 2) Nitrates (nitroglycerin) Afterload: Vasodilate to reduce (decrease) afterload 1) ACE Inhibitors (enalapril, fosinopril, captopril) 2) ARBS (valsartan, losartan, irbesartan) 3) Hydralazine 4) Nitrates Improve Contractility: 1) Inotropes (dopamine, dobutamine, milrinone) Rate Control: 1) Beta Blockers (propranolol, metoprolol, atenolol, carvedilol) 2) Calcium Channel Blocker (diltiazem, verapamil, amlodipine) 3) Digoxin Rhythm Control: 1) Antiarrhythmics (Amiodarone) C A R D IA C 66 Copyright protected. Reproduction prohibited without authorization and release by Hurst Review Services. b. Treatment: 1) Medications: a) Nitroglycerin (Nitrostat®): Sublingual • Causes venous and arterial ___________________ • This dilation will cause ________________ preload and afterload. • Also causes dilation of the _________________ arteries which will increase blood flow to the actual heart muscle (myocardium) • Take 1 every ________ min x ________ doses. • Okay to swallow? __________ • Keep in dark, glass bottle; dry, cool • May or may not burn or fizz • The client will get a ________________. • Renew how often? An average of every _______ months Spray? _______ years • After nitroglycerin (Nitrostat®), what do you expect the BP to do? ______________________ TESTING STRATEGY RULE: NEVER LEAVE AN UNSTABLE CLIENT. Algorithm for NTG: Take one NTG SL, after 5 minutes if chest pain/discomfort is unimproved or worsened, activate emergency response. 67CRITICAL THINKING AND APPLICATION | STUDENT MANUAL C A R D IA C b) Beta Blockers (for prevention of angina): • Examples: propranolol (Inderal®), metoprolol (Lopressor®/Toprol XL®), atenolol (Tenormin®), carvedilol (Coreg®) • What do beta blockers do to BP, P, and myocardial contractility? _______________ • What does this do to the workload of the heart? _______________ Beta blockers block the beta cells… these are the receptor sites for catecholamines - the epi and norepi. We just decreased the contractility… So what happened to my CO? _____________. We have _____________ the workload on my heart. This is a good thing to a certain point, because when we decrease the work on the heart, the need for oxygen is decreased, and that decreases angina. But could we decrease the client’s cardiac output (HR and BP) too much with these drugs? ________ c) Calcium Channel Blockers (prevention of angina): • Examples: nifedipine (Procardia XL®), verapamil (Calan®), amlodipine (Norvasc®), diltiazem(Cardizem®) • What do these do to the BP? ____________ • Calcium channel blockers cause vasodilation of the arterial system. • They dilate ____________________ arteries. • Two benefits of calcium channel blockers are they ____________ afterload and ________________ oxygen to the heart muscle. d) Acetylsalicylic acid (Aspirin®): • Dose is determined by the primary healthcare provider (81 mg - 325 mg). C A R D IA C 68 Copyright protected. Reproduction prohibited without authorization and release by Hurst Review Services. 2) Client Education/Teaching for Chronic Stable Angina: • Rest frequently • Avoid overeating • Avoid excess caffeine or any drugs that increase HR • Wait 2 hours after eating to exercise • Dress warmly in cold weather (any temperature extreme can precipitate an attack) • Take nitroglycerin prophylactically • Smoking cessation • Lose weight • Avoid isometric exercise • Reduce stress TESTING STRATEGY DO EVERYTHING YOU CAN TO DECREASE THE WORKLOAD ON THE HEART. 3) Cardiac Catheterization: a) Pre-procedure: • Ask if they are allergic to ___________________________. Iodine based dye is used during the procedure. • Also, we want to check their kidney function because you excrete the dye through the ____________. Many primary healthcare providers prescribe acetylcysteine (Mucomyst®) pre-procedure, especially if the client has kidney problems. Acetylcysteine helps to protect the kidneys. • Hot shot • Palpitations normal 69CRITICAL THINKING AND APPLICATION | STUDENT MANUAL C A R D IA C b) Post-procedure: • Monitor VS • Watch puncture site What are you watching for? _______________ and hematoma formation • Assess extremity distal to puncture site (5-Ps). The 5 Ps: Pulselessness Pallor Pain Paresthesia Paralysis • Bed rest, flat, extremitystraight X 4-6 hours • Major complication post cath? _________________________ • Report pain ASAP • If the client is on metformin (Glucophage®)______________ this medicine for 48 hours post procedure. We are worried about the _______________. Unstable chronic angina = Impending MI 2. Acute Coronary Syndrome: MI, Unstable Angina: a. Pathophysiology: 1) Decreased blood flow to myocardium ischemia, necrosis or both? ___________ 2) Does the client have to be doing anything to bring this pain on? ______________ 3) Will rest or nitroglycerin (Nitrostat®) relieve this pain?________ C A R D IA C 70 Copyright protected. Reproduction prohibited without authorization and release by Hurst Review Services. b. Signs/Symptoms: • Pain May describe pain as ______________________, an elephant sitting on their chest, pressure radiating to the left arm and left jaw, N/V, or pain between their shoulder blades. _______________ usually present with GI signs and symptoms, epigastric discomfort or pain between the shoulders, an aching jaw or a choking sensation. What is the #1 sign of an MI in the elderly? _________________ • Cold/clammy/BP drops • Cardiac output is going ________. • ECG changes • Vomiting You may see the following terms in a test question: ***WORRY ABOUT THE STEMI CLIENT*** STEMI: ST-Segment Elevation Myocardial Infarction-this indicates that the client is having a heart attack and the goal is to get them to the cath lab for PCI in less than 90 minutes. NSTEMI: Non-ST-Segment Elevation Myocardial Infarction-these clients are usually less worrisome. c. Diagnostic Lab Work: 1) CPK-MB: • Cardiac specific _____________________ • _______________ with damage to cardiac cells • Elevates within __________ hours and peaks in _________ hours 2) Troponin: • Cardiac biomarker with _______ specificity to myocardial damage • Elevates within ________ hours and remains ___________ for up to 3 weeks LAB VALUES FOR TROPONIN ISOMERS: Troponin T < 0.10 ng/mL Troponin I < 0.03 ng/mL 71CRITICAL THINKING AND APPLICATION | STUDENT MANUAL C A R D IA C 3) Myoglobin: • Increases within ____ hour and peaks in _____ hours • _________________ results are a good thing. 4) Which cardiac biomarker is the most sensitive indicator for an MI? _________________ 5) Which enzymes or biomarkers are most helpful when the client delays seeking care? _________________ d. Complications: Major arrhythmias: • What untreated arrhythmias will put the client at risk for sudden death? Pulseless V-Tach V-Fib ______________________________ • Priority treatment for V-Fib: ___________________ • If the first shock doesn’t work and the client remains in V-Fib, what is the first vasopressor we give? _________________ • Amiodarone (Cordarone®) is an anti-arrhythmic and is used when V-Fib and pulseless VT are resistant to treatment, and also for fast arrhythmias. • What anti-arrhythmic drugs are commonly given to prevent a second episode of V-Fib? ________________ or ___________________. • Lidocaine toxicity: any _________ changes • Amiodarone (Cordarone®) is the first anti-arrhythmic of choice. Important side effect? ____________________ This hypotension can lead to further arrhythmias. C A R D IA C 72 Copyright protected. Reproduction prohibited without authorization and release by Hurst Review Services. e. Treatment: • What medications are used for chest pain when they get to the ED? _________________________________ (keep O2 sat > 90%) _________________________________ , (chewable or tablet?) _________________________________ _________________________________ • Head up position. Why? Decreases _______________ on the heart and increases _________________________. 1) Thrombolytics: • Goal: Dissolve the clot that is blocking blood flow to the heart muscle decreases the size of the infarction. • Medications: alteplase (t-PA®), tenecteplase (TNKase®, one time push), reteplase (Retavase®) and streptokinase (Streptase®) • How soon after the onset of myocardial pain should these drugs be administered? Within _____________ hours • Stroke: __________ IS BRAIN. • Major complication: _________________ • Obtain a good _______________ history. • Absolute contraindications: Intracranial neoplasm, intracranial bleed, suspected aortic dissection, or internal bleeding • During and after administration we take __________________ precautions. dabigatran (Pradaxa®) antidote: idarucizumab (Praxbind®) 73CRITICAL THINKING AND APPLICATION | STUDENT MANUAL C A R D IA C COMMON MEDICATIONS REQUIRING BLEEDING PRECAUTIONS: 1. Anti-coagulants and Anti-platelets: Heparin, warfarin (Coumadin®), enoxaparin sodium (Lovenox®), eptifibatide (Integrillin®) 2. Antithrombotics: apixaban (Eliquis®), dabigatran (Pradaxa®), rivaroxaban (Xarelto®) 3. Acetaminophen (Tylenol®) Bleeding Precautions: Watch for bleeding gums, hematuria and black stools. Use an electric razor, a soft toothbrush, and No IMs. • Draw blood when starting IVs, decrease the number of ____________ sites. • What about ABGs? ______________ • Follow-Up Therapy: Antiplatelets are another important component of thrombolytic therapy. acetylsalicylic acid (Aspirin®), clopidogrel (Plavix®), abciximab (ReoPro IV®) (continuous IV infusion to inhibit platelet aggregation) 2) Medical Interventions: a) PCI (Percutaneous Coronary Intervention): • Includes all interventions such as PTCA (angioplasty) and stents • Major complication of an angioplasty is a _________. Don’t forget the client may bleed from heart cath site, or they could reocclude. • If any problems occur go to ___________________. Chest pain after procedure: call the primary healthcare provider at once reoccluding! • Anti-platelet medications: Acetylsalicylic acid (Aspirin®) Clopidogrel (Plavix®) Abciximab (ReoPro IV®) Eptifibatide (Integrilin IV®) Given to high risk clients who have been stented to keep artery open and those waiting to go to the cath lab C A R D IA C 74 Copyright protected. Reproduction prohibited without authorization and release by Hurst Review Services. b) Coronary Artery Bypass Graft (CABG): • Can be scheduled or emergency procedure • Used with multiple vessel disease or left main coronary artery occlusion. • The _____________ main coronary artery supplies the entire left ventricle. • Left main coronary artery occlusion... Think: __________________ or Widow Maker. 3) Cardiac Rehabilitation: • Smoking cessation • Stepped-care plan (increase activity gradually) • Diet changes- _____ fat, _____ salt, _____ cholesterol • No isometric exercises-___________________ workload of heart • No Valsalva • No straining; no suppository; docusate (Colace®) • When can sex be resumed? For clients without complications: _______________________________________________________ • What is the safest time of day for sex? _______________________________________________________, when the client is well rested. • Best exercise for MI client? _____________ • Teach Signs/Symptoms of heart failure: Weight __________________ Ankle edema Shortness of ______________ Confusion 75CRITICAL THINKING AND APPLICATION | STUDENT MANUAL C A R D IA C E. Heart Failure (HF): 1. Causes: • HF is a complication that can result from problems such as cardiomyopathy, valvular heart disease, endocarditis, acute MI, and _______________. 2. Types: a. Left Sided Failure: the blood is not moving forward into the aorta and out to the body … If it does not move forward, then it will go backward into the ________. • Signs/Symptoms: Pulmonary congestion Dyspnea Cough Blood tinged frothy sputum Restlessness Tachycardia S-3 Orthopnea Nocturnal dyspnea b. Right Sided Failure: the blood is not moving forward into the lungs … If it does not move forward then it goes backward intothe ___________ system. • Signs/Symptoms: Distended neck veins Edema Enlarged organs Weight gain Ascites Terminology: Systolic heart failure: heart can’t contract and eject. Diastolic heart failure: ventricles can’t relax and fill. Left = Lungs C A R D IA C 76 Copyright protected. Reproduction prohibited without authorization and release by Hurst Review Services. 3. Diagnosis: a. B-type (BNP) natriuretic peptide: • Secreted by ventricular tissues in the heart when ventricular volumes and pressures in the heart are increased • Sensitive indicator • Can be _________ for HF when the CXR does not indicate a problem • If the client is on nesiritide (Natrecor®), turn it off _____________prior to drawing a BNP. b. CXR: enlarged ____________________, pulmonary infiltrates c. Echocardiogram: looks at the pumping action or ejection fraction of the heart. An ECG can also give you information about backflow and valve disease. d. New York Heart Association Functional Classification of Persons with HF: • Classes 1-4 (Class 4 is the worst) The Swan-Ganz (Pulmonary Artery) catheter is a balloon flotation catheter that can be floated into the right side of the heart and pulmonary artery. It provides information to rapidly determine hemodynamic pressures, cardiac output and provides access to mixed venous blood sampling. Arterial lines can be placed in multiple arteries, but the most common site is the radial artery. It provides continuous intra-arterial blood pressure monitoring and allows for repeated ABG samples to be collected without injury to the client. 77CRITICAL THINKING AND APPLICATION | STUDENT MANUAL C A R D IA C 4. Treatment: a. Medications: Standard medication therapy for HF is ACE inhibitors and ARBs. 1) ACE Inhibitors: • These are the Drug of Choice (DOC) for HF • They suppress the Renin Angiotensin System (RAS) • Prevent conversion of Angiotensin I to Angiotensin II • Results in arterial _____________ and ______________ stroke volume. 2) ARBs: • Block Angiotensin II receptors, and cause a ________________ in arterial resistance and decreased BP. Ace inhibitors and ARBs both block aldosterone. When we block aldosterone, we lose _____________ and ____________ and retain __________________. It is standard practice (a core measure) that a client with HF will be sent home on an ____________________ and/or a beta blocker. Why? Because, these drugs, ____________ the workload on the heart by preventing vasoconstriction (decreasing afterload). This will increase the cardiac output and keep blood moving _______________ out of the heart. That’s what we wantforward flow. 3) Digoxin (Lanoxin®): Actions: • Monitor for drug toxicity, especially in the elderly. • Used when the client is in sinus rhythm or atrial fibrillation and has accompanying chronic HF. • Often given in combination with an ACE inhibitor, ARBs, Beta Blocker or ________________. • Contraction? __________________________ • Heart rate? ____________________________ When the heart rate is slowed, this gives the ventricles more time to fill with blood. C A R D IA C 78 Copyright protected. Reproduction prohibited without authorization and release by Hurst Review Services. • Cardiac output will go ___________. • Kidney perfusion _______________. Nursing Considerations: • Would diuresis be a good thing or bad thing for this client? _________ • We always want to ____________ heart failure clients…they can’t handle the fluid. • Digitalizing dose (loading dose) • How do you know the Digoxin is working? Because the cardiac output goes ___________ • Signs/Symptoms of toxicity: Early: Anorexia, nausea, and vomiting Late: Arrhythmias and _________________ changes • Before administering, do what? ________________________ • Monitor electrolytes All electrolyte levels must remain normal, but potassium is the one that causes the most trouble. (________________+_________________=________________) TESTING STRATEGY Any electrolyte imbalance can promote Digoxin toxicity. 4) Diuretics: • Examples: furosemide (Lasix®), hydrochlorothiazide (HCTZ®), bumetanide (Bumex®), hydrochlorothiazide/ triamterene (Dyazide®), spironolactone (Aldactone®) • Action: Decreases ____________________________ • Nursing Considerations: When do you give diuretics? ___________________ Normal Dig level= ____to____ ng/mL 79CRITICAL THINKING AND APPLICATION | STUDENT MANUAL C A R D IA C b. Low Sodium Diet: • Decreases fluid retention and helps decrease____________________________. • Watch salt substitutes. Salt substitutes can contain excessive __________________. • Canned/processed foods & OTC meds can contain a lot of _________________. c. Elevate head of bed. d. Weigh daily and report a gain of __________________ (1 - 2 kgs). TESTING STRATEGY Fluid retention-think Heart Problems 1st. e. Report signs and symptoms of recurring failure. f. Pacemaker: • Your “natural” pacemaker is the SA node or sinus node. It sends out impulses that make the heart _______________. • If your heart rate drops to 60 or below, cardiac output can ___________________. • Pacemakers are used to increase the heart rate with symptomatic bradycardia. Pacemakers may be temporary (invasive or non-invasive) or permanent. Most permanent pacemakers are demand, but you can also see fixed pacemakers. • Always worry if the heart rate drops below the set rate. • Any pacemaker will maintain a certain minimal heart rate depending on the settings; in other words the ________________. • A demand pacemaker kicks in only when the client needs it. • Fixed rate pacemakers fire at a ______________ rate constantly. • It’s okay for the rate to increase but never _________________. • Always worry if the rate ___________ below the set rate. C A R D IA C 80 Copyright protected. Reproduction prohibited without authorization and release by Hurst Review Services. Post-Procedure Care (for permanent pacemakers): • Monitor the incision. • Most common complication post-op? Electrode _____________ • Immobilize arm. • Assisted passive range of motion to prevent frozen _______________ • Keep the client from raising the arm higher than shoulder height. Signs/Symptoms of Malfunction: • It’s possible that no contraction will follow the stimulus. This is called __________________. • Is it possible for the pacemaker to fire at inappropriate times? _______________________________ This is called failure to __________________. • What can cause loss of capture, failure to sense or any malfunction? The pacemaker may not be ________________ correctly. Electrodes can _________________. Battery may be _______________. • Watch for any sign of decreased CO or decreased_________________. Client Education/Teaching: • Check __________________ daily. • ID card or bracelet • Avoid electromagnetic fields (cell phones, large motors). • Avoid MRIs. 81CRITICAL THINKING AND APPLICATION | STUDENT MANUAL C A R D IA C F. Pulmonary Edema: 1. Who is at risk? Any person: • receiving IV fluids really ___________________ • the very young and the very old • any person who has a history of __________ or __________ disease 2. Pathophysiology: • Fluid is backing up into the _______________. The heart is unable to move the volume _________________. • Pulmonary edema usually occurs at __________, when the client goes to bed. 3. Signs/Symptoms: • Sudden onset • Breathless • Restless/anxious • Severe ___________________________ • Productive cough (pink frothy sputum) 4. Treatment: a. Oxygen: • The priority nursing action is to administer high flow oxygen. Monitor oxygen saturation and titrate to keep above ________%. b. Medications: 1) Diuretics: • Furosemide (Lasix®) • Causes diuresisand vasodilation which traps more blood out in the arms and legs and reduces _______________. • 40 mg IV push slowly over 1-2 minutes to prevent __________________ and ototoxicity C A R D IA C 82 Copyright protected. Reproduction prohibited without authorization and release by Hurst Review Services. • Bumetanide (Bumex®) • Can be given IV push or as a continuous IV infusion to provide rapid fluid _________ • 1-2 mg IV push given over 1-2 minutes 2) Nitroglycerin (Nitro-Bid® IV): • Vasodilation: ____________ afterload • Decreased afterload = increased CO because the heart is pumping against less pressure, and more blood can be moved _____________. 3) Morphine (Morphine Sulfate®): • 2 mg IV push for vasodilation to decrease preload and afterload 4) Nesiritide (Natrecor®): • IV infusion; short term therapy; not to be given more than 48 hours • Vasodilates veins and arteries and has a diuretic effect c. Positioning: • _________________ position; legs down Improves ______________________________ Promotes ______________________ of blood in lower extremities d. Prevention: • Prevention when possible: Check ________________________, and Avoid fluid volume __________________. Remember to turn the nesiritide infusion off 2 hours before drawing a BNP level. 83CRITICAL THINKING AND APPLICATION | STUDENT MANUAL C A R D IA C G. Cardiac Tamponade: 1. Pathophysiology: • _____________________, fluid, or exudates have leaked into the pericardial sac resulting in compression of the heart. • This can happen if the client has had a motor vehicle collision, right ventricular biopsy, an ___________, pericarditis, or hemorrhage post CABG. 2. Signs/Symptoms: • Decreased cardiac output • CVP will be _______________. • BP will be dropping. • Hallmark signs for cardiac tamponade • ________________ CVP • ________________ BP • Heart sounds will be muffled or distant • Neck veins _________________ • Pressures in all 4 chambers are the same • Shock • Narrowed pulse pressure (from the baseline) What is the pulse pressure? It’s the difference between the ________________ and the ______________________ pressure. 3. Treatment: • Pericardiocentesis to remove _________________________ from around the heart • Surgery Narrowed pulse pressure think: Cardiac Tamponade Widened pulse pressure think: Increased Intracranial Pressure C A R D IA C 84 Copyright protected. Reproduction prohibited without authorization and release by Hurst Review Services. H. Arterial Disorders: 1. General Information: a. Pathophysiology: • If you have atherosclerosis in one place, you have it everywhere. • It is a medical emergency if you have an acute arterial _______________. • Client will report numbness and pain • The extremity will be cold • No palpable pulse • More symptomatic in ______________________ extremities • Intermittent claudication- hallmark _________________. • Arterial blood isn’t getting to the ____________________ coldness, numbness, decreased peripheral pulses, atrophy, bruit, skin/nail changes, and ulcerations. • Pain at rest means _________________ obstruction. b. Treatment: • Since arterial blood is having problems getting to the tissue, if you elevate the extremity, would the pain increase or decrease? ___________________ • Arterial disorders of the lower extremities are usually treated with either angioplasty or endarterectomy. We ELEVATE veins We DANGLE arteries We ELEVATE veins We DANGLE arteries 85CRITICAL THINKING AND APPLICATION | STUDENT MANUAL C A R D IA C CHRONIC ARTERIAL vs CHRONIC VENOUS Symptom Chronic Arterial Insufficiency Chronic Venous Insufficiency Pain Intermittent claudication (progresses to pain at rest) None to aching pain, depending on dependency of area Pulses Decreased or may be absent Normal (may be difficult to palpate due to edema) Color Pale when elevated, red with lowering of leg Normal (may see petechiae or brown pigmentation with chronic condition) Temperature Cool Normal Edema Absent or mild Present Skin Changes Thin, shiny, loss of hair over foot/toes, nail thickening Brown pigmentation around ankles, possible thickening of skin, scarring may develop Ulceration If present, will involve toes or areas of trauma on feet (painful) If present, will be on sides of ankles Gangrene May develop Does not develop Compression Not used Used
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