{"id":4422481,"date":"2025-01-11T20:56:35","date_gmt":"2025-01-12T02:56:35","guid":{"rendered":"https:\/\/myendoconsult.com\/learn\/topics\/diabetic-complications\/"},"modified":"2025-01-12T12:52:38","modified_gmt":"2025-01-12T18:52:38","slug":"diabetic-complications","status":"publish","type":"oen_topic","link":"https:\/\/myendoconsult.com\/learn\/topics\/diabetic-complications\/","title":{"rendered":"Diabetic Complications"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">DIABETIC KETOACIDOSIS (DKA)<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Definition and Pathophysiology<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Triad:<\/strong> Hyperglycemia, anion gap metabolic acidosis, and ketonemia.<\/li>\n\n\n\n<li>Primarily seen in <strong><a href=\"https:\/\/myendoconsult.com\/learn\/topics\/type-1-diabetes\/\" data-wpil-monitor-id=\"319\">type 1 diabetes<\/a> mellitus<\/strong> (severe insulin deficiency).<\/li>\n\n\n\n<li><strong>Mechanisms:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Insulin deficiency + excess counterregulatory hormones (glucagon, catecholamines, cortisol, GH).<\/li>\n\n\n\n<li>\u2192 Glycogenolysis, gluconeogenesis, decreased glucose disposal.<\/li>\n\n\n\n<li>\u2192 Excessive lipolysis, increased fatty acid oxidation \u2192 excess ketone production.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Clinical Presentation<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Onset:<\/strong> Can occur rapidly over 24 hours; often preceded by polyuria, polydipsia, weight loss.<\/li>\n\n\n\n<li><strong>Symptoms:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Nausea, vomiting, abdominal pain.<\/li>\n\n\n\n<li>Lethargy, Kussmaul respirations (slow, deep breathing).<\/li>\n\n\n\n<li>Fruity (acetone) odor on breath.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Signs:<\/strong> Hypotension, tachycardia, tachypnea, dehydration, decreased skin turgor, dry mucous membranes.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Laboratory Findings<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Low serum bicarbonate (&lt;10 mEq\/L).<\/strong><\/li>\n\n\n\n<li><strong>High <a href=\"https:\/\/myendoconsult.com\/learn\/anion-gap-formula\/\" data-wpil-monitor-id=\"321\">anion gap<\/a> (&gt;20 mEq\/L).<\/strong><\/li>\n\n\n\n<li><strong>High serum glucose<\/strong> (500\u2013900 mg\/dL).<\/li>\n\n\n\n<li><strong>Low arterial pH (&lt;7.3).<\/strong><\/li>\n\n\n\n<li><strong>Increased ketones<\/strong> (acetoacetate, \u03b2-hydroxybutyrate).<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Differential Diagnosis<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Other causes of metabolic acidosis with high anion gap:\n<ul class=\"wp-block-list\">\n<li>Lactic acidosis, starvation ketosis, alcoholic ketoacidosis, uremia, salicylates, etc.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"960\" height=\"672\" src=\"https:\/\/myendoconsult.com\/learn\/wp-content\/uploads\/DKA-infographic.png\" alt=\"\" class=\"wp-image-4421650\" srcset=\"https:\/\/myendoconsult.com\/learn\/wp-content\/uploads\/DKA-infographic.png 960w, https:\/\/myendoconsult.com\/learn\/wp-content\/uploads\/DKA-infographic-300x210.png 300w, https:\/\/myendoconsult.com\/learn\/wp-content\/uploads\/DKA-infographic-768x538.png 768w\" sizes=\"auto, (max-width: 960px) 100vw, 960px\" \/><figcaption class=\"wp-element-caption\">Management Protocol for Diabetic Ketoacidosis<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Treatment and Management<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Fluids:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Normal saline 1 L in first hour \u2192 200\u2013500 mL\/hr guided by clinical\/lab response.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Insulin Administration:<\/strong>\n<ul class=\"wp-block-list\">\n<li>IV bolus (10 U) + continuous infusion (0.1 U\/kg\/hr).<\/li>\n\n\n\n<li>Target: decrease serum glucose by 50\u201375 mg\/dL\/hr.<\/li>\n\n\n\n<li>Reduce insulin infusion rate when glucose ~200 mg\/dL to avoid hypoglycemia &amp; cerebral edema.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Electrolytes:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Potassium often shifts from intracellular to extracellular space, but total body K+ is low.<\/li>\n\n\n\n<li>Add K+ if serum K+ &lt;5.3 mEq\/L.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Monitoring:<\/strong>\n<ul class=\"wp-block-list\">\n<li>ICU setting, hourly blood glucose &amp; potassium checks, frequent electrolytes (Ca2+, Mg2+, phosphate).<\/li>\n\n\n\n<li>Correction period usually 12\u201336 hrs.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Identify Underlying Cause:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Often poor insulin compliance in known type 1 diabetes.<\/li>\n\n\n\n<li>Can be triggered by infection, MI, stroke, pancreatitis.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">DIABETIC RETINOPATHY<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Overview<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Microvascular complication<\/strong> of hyperglycemia \u2192 25\u00d7 higher risk of blindness.<\/li>\n\n\n\n<li><strong>Vision Loss Mechanisms:<\/strong> Retinal hemorrhage, macular edema, retinal detachment, neovascular glaucoma.<\/li>\n\n\n\n<li>Nearly all with type 1 and &gt;50% with <a href=\"https:\/\/myendoconsult.com\/learn\/topics\/type-2-diabetes\/\" data-wpil-monitor-id=\"320\">type 2 diabetes<\/a> develop it within 20 years of diagnosis.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"3000\" height=\"2100\" src=\"https:\/\/myendoconsult.com\/learn\/wp-content\/uploads\/Diabetic-Retinopathy-Hallmarks.png\" alt=\"\" class=\"wp-image-4422731\" srcset=\"https:\/\/myendoconsult.com\/learn\/wp-content\/uploads\/Diabetic-Retinopathy-Hallmarks.png 3000w, https:\/\/myendoconsult.com\/learn\/wp-content\/uploads\/Diabetic-Retinopathy-Hallmarks-300x210.png 300w, https:\/\/myendoconsult.com\/learn\/wp-content\/uploads\/Diabetic-Retinopathy-Hallmarks-768x538.png 768w, https:\/\/myendoconsult.com\/learn\/wp-content\/uploads\/Diabetic-Retinopathy-Hallmarks-1536x1075.png 1536w, https:\/\/myendoconsult.com\/learn\/wp-content\/uploads\/Diabetic-Retinopathy-Hallmarks-2048x1434.png 2048w\" sizes=\"auto, (max-width: 3000px) 100vw, 3000px\" \/><figcaption class=\"wp-element-caption\">Classic features of Diabetic Retinopathy<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Pathogenesis<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Chronic hyperglycemia<\/strong> \u2192 abnormal retinal vessel permeability + vascular occlusion \u2192 ischemia.<\/li>\n\n\n\n<li><strong>Mechanisms:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Impaired autoregulation of retinal blood flow.<\/li>\n\n\n\n<li>Increased advanced glycation end products, sorbitol.<\/li>\n\n\n\n<li>Microaneurysms form from pericyte loss.<\/li>\n\n\n\n<li>Triggered growth factors (VEGF, etc.) \u2192 neovascularization.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Nonproliferative Retinopathy (NPDR)<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Key Findings:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Microaneurysms, intraretinal hemorrhages (dot-and-blot, flame-shaped), cotton-wool patches (nerve fiber infarcts), hard exudates (lipid).<\/li>\n\n\n\n<li>Macular edema = main cause of vision loss here.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Risk of Progression:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Mild NPDR: ~5%\/year to proliferative.<\/li>\n\n\n\n<li>Very severe NPDR: ~75%\/year to proliferative.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Proliferative Retinopathy (PDR)<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Defining Feature:<\/strong> Neovascularization (new vessels from retinal vessels\/optic disc).<\/li>\n\n\n\n<li><strong>Complications:<\/strong> Vitreous hemorrhage, preretinal hemorrhage, traction retinal detachment \u2192 severe vision loss.<\/li>\n\n\n\n<li><strong>Diagnosis:<\/strong> Fundus exam \u00b1 fluorescein angiography (to detect leak\/ischemia).<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Macular Edema<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Retinal thickening \u00b1 edema at or near macula \u2192 most common cause of diabetic vision loss.<\/li>\n\n\n\n<li><strong>Clinically significant macular edema<\/strong>: thickening threatens central visual function.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">COMPLICATIONS OF PROLIFERATIVE DIABETIC RETINOPATHY<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Clinical Course<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Neovascularization<\/strong> \u2192 high risk vitreous or preretinal hemorrhage, fibrosis, traction detachment.<\/li>\n\n\n\n<li>Untreated severe PDR \u2192 ~60% risk of vision loss within 5 years.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Management<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Annual screening<\/strong> crucial; retinopathy often asymptomatic until advanced.<\/li>\n\n\n\n<li><strong>Tight glycemic control<\/strong> slows progression.<\/li>\n\n\n\n<li><strong>Laser photocoagulation:<\/strong>\n<ul class=\"wp-block-list\">\n<li><strong>Panretinal (scatter)<\/strong> for severe PDR (~1200\u20131800 burns).<\/li>\n\n\n\n<li><strong>Focal<\/strong> for clinically significant macular edema.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Adjuncts:<\/strong> Intravitreal anti-VEGF agents under study.<\/li>\n\n\n\n<li><strong>Surgery (vitrectomy)<\/strong> for nonresolving vitreous hemorrhage or traction detachment.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">DIABETIC NEPHROPATHY<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Overview<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Major cause of morbidity\/mortality in both type 1 and type 2 diabetes.<\/li>\n\n\n\n<li>Leading cause of end-stage renal disease (ESRD).<\/li>\n\n\n\n<li><strong>Classic triad:<\/strong> Proteinuria, hypertension, renal impairment.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Stages of Nephropathy<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Hyperfiltration<\/strong>: Elevated GFR, glomerular hypertrophy.<\/li>\n\n\n\n<li><strong>Silent Stage<\/strong>: Normal GFR, no proteinuria, but basement membrane thickening, mesangial expansion.<\/li>\n\n\n\n<li><strong>Incipient Nephropathy<\/strong>: Microalbuminuria (30\u2013300 mg\/24 hr), often with hypertension.<\/li>\n\n\n\n<li><strong>Overt Nephropathy<\/strong>: Macroalbuminuria (&gt;300 mg\/24 hr), rising creatinine.<\/li>\n\n\n\n<li><strong>Uremia<\/strong>: ESRD requiring renal replacement therapy.<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">Pathogenesis<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Chronic hyperglycemia<\/strong> \u2192 thickened glomerular basement membrane, mesangial expansion, nodular\/diffuse glomerulosclerosis.<\/li>\n\n\n\n<li>Hypertrophy \u2192 glomerular hyperfiltration \u2192 progressive damage.<\/li>\n\n\n\n<li>Microangiopathy can cause tubulopathy, type IV RTA, hyperkalemia, hypoaldosteronism.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Treatment<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Glycemic control<\/strong>: slows onset\/progression.<\/li>\n\n\n\n<li><strong>Blood pressure management<\/strong>: ACE inhibitors\/ARBs are first-line for renoprotection (\u2193 albuminuria).<\/li>\n\n\n\n<li><strong>Avoid nephrotoxins<\/strong>: NSAIDs, contrast dyes, etc.<\/li>\n\n\n\n<li><strong>ESRD<\/strong>: Options include hemodialysis, peritoneal dialysis, <a href=\"https:\/\/myendoconsult.com\/learn\/dpc-score-for-kidney-transplant-recipients\/\" data-wpil-monitor-id=\"322\">kidney \u00b1 pancreas transplantation<\/a>.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">DIABETIC NEUROPATHY<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">General Features<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>~50% prevalence in those with \u226525 years diabetes.<\/li>\n\n\n\n<li>Not one single entity \u2192 multiple patterns: focal, proximal, distal, autonomic.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Focal Neuropathies<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Mononeuropathies<\/strong> in older patients:\n<ul class=\"wp-block-list\">\n<li>Sudden onset, self-limited (2 months).<\/li>\n\n\n\n<li>Commonly CN III, VI, VII, or peripheral nerves (ulnar, peroneal).<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Polyradiculopathy<\/strong>: severe pain along nerve roots \u00b1 muscle weakness.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Proximal Motor Neuropathies<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Diabetic amyotrophy<\/strong> \u2192 older type 2 patients.<\/li>\n\n\n\n<li>Thigh\/pelvic girdle pain, quad atrophy, marked weakness in proximal lower limbs.<\/li>\n\n\n\n<li>Often weight loss, depression.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Distal Symmetric Polyneuropathy (DSPN)<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Most common<\/strong> form.<\/li>\n\n\n\n<li>Slow onset, symmetric, \u201cstocking-and-glove.\u201d<\/li>\n\n\n\n<li>Small-fiber neuropathy \u2192 burning pain, hyperalgesia, allodynia.<\/li>\n\n\n\n<li>Large-fiber neuropathy \u2192 decreased vibration\/proprioception, muscle weakness, absent reflexes.<\/li>\n\n\n\n<li>Risk of foot ulcers, Charcot arthropathy.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Autonomic Neuropathy<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Pervasive<\/strong> sympathetic &amp; parasympathetic involvement \u2192\n<ul class=\"wp-block-list\">\n<li>Pupillary changes, orthostatic hypotension, gastroparesis, nocturnal diarrhea, neurogenic bladder, erectile dysfunction, sweat disturbances, hypoglycemic unawareness, silent MI.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">ATHEROSCLEROSIS IN DIABETES<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Overview<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Macrovascular complications more extensive and faster progression than in nondiabetics.<\/li>\n\n\n\n<li>Diabetes = CHD \u201crisk equivalent,\u201d same approach as known CHD.<\/li>\n\n\n\n<li><strong>Pathophysiology<\/strong>:\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/myendoconsult.com\/learn\/homa-ir-calculator\/\" data-wpil-monitor-id=\"323\">Insulin resistance<\/a> \u2192 \u2191 free fatty acids \u2192 \u2191 VLDL \u2192 dyslipidemia (low HDL, high small dense LDL).<\/li>\n\n\n\n<li>Insulin &amp; hyperglycemia potentiate platelet-derived growth factor \u2192 vascular smooth muscle proliferation.<\/li>\n\n\n\n<li>\u2191 plasminogen activator inhibitor 1, decreased nitric oxide.<\/li>\n\n\n\n<li>M\u00f6nckeberg arteriosclerosis (medial calcific sclerosis) more common.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Cardiovascular Risk Reduction<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Lifestyle<\/strong>: weight loss, exercise, stop smoking.<\/li>\n\n\n\n<li><strong>Optimal glycemic control<\/strong> and <strong>BP &lt;130\/80<\/strong>.<\/li>\n\n\n\n<li><strong><a href=\"https:\/\/myendoconsult.com\/learn\/courses\/lipid-management-in-endocrine-disease\/\" data-wpil-monitor-id=\"324\">Lipid management<\/a><\/strong> (statins).<\/li>\n\n\n\n<li><strong>Aspirin<\/strong> for primary\/secondary prevention.<\/li>\n\n\n\n<li><strong>ACE inhibitors\/ARBs<\/strong> reduce CHD events in patients with diabetes.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Myocardial Infarction in Diabetes<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>2\u00d7 higher fatality rate vs. nondiabetics.<\/li>\n\n\n\n<li>Mechanisms: more severe underlying disease, microvascular involvement, less collateral flow, autonomic dysfunction, maladaptive remodeling.<\/li>\n\n\n\n<li>Glycemic control can shift myocardial substrate use from fatty acids to glucose, improving efficiency.<\/li>\n\n\n\n<li>Post-MI care: ACE inhibitors, cardioselective \u03b2-blockers, aspirin.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">VASCULAR INSUFFICIENCY IN DIABETES: THE DIABETIC FOOT<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Epidemiology<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Foot ulcers in ~10% of diabetics; ~1% need amputation.<\/li>\n\n\n\n<li>Neuropathy + vascular disease major contributors.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Pathogenesis<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Neuropathy<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Sympathetic \u2192 decreased sweating \u2192 dry, cracked skin \u2192 infection risk.<\/li>\n\n\n\n<li>Motor \u2192 small muscle atrophy \u2192 deformities (claw toes) \u2192 pressure points.<\/li>\n\n\n\n<li>Sensory \u2192 decreased pain\/proprioception \u2192 unnoticed trauma\/ulcers.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Vascular Insufficiency<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Peripheral arterial disease more severe, accelerated by diabetes-related endothelial dysfunction, atherosclerosis.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">Prevention &amp; Screening<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><a href=\"https:\/\/myendoconsult.com\/learn\/diabetic-foot-examination\/\" data-type=\"link\" data-id=\"https:\/\/myendoconsult.com\/learn\/diabetic-foot-examination\/\">Annual foot exams<\/a><\/strong>:\n<ul class=\"wp-block-list\">\n<li>Check pulses (dorsalis pedis, posterior tibial), skin temperature, dependent rubor.<\/li>\n\n\n\n<li>Inspect foot architecture for calluses, deformities (hammer\/claw toes), dryness.<\/li>\n\n\n\n<li><strong>Monofilament testing<\/strong> (Semmes-Weinstein 5.07 for protective sensation).<\/li>\n\n\n\n<li>Check vibration (128-Hz tuning fork), reflexes, color changes.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Foot Care<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Smoking cessation, avoid walking barefoot, test bath water temp, trim nails properly, daily inspection for lesions, well-fitting footwear.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Diabetic Foot Ulcer Classification (<a href=\"https:\/\/myendoconsult.com\/learn\/diabetic-foot-ulcer-stages\/\" data-type=\"link\" data-id=\"https:\/\/myendoconsult.com\/learn\/diabetic-foot-ulcer-stages\/\">Wagner Classification<\/a>)<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Grade 0<\/strong>: No ulcer; high risk (deformity, callus).<\/li>\n\n\n\n<li><strong>Grade 1<\/strong>: Superficial ulcer (full-thickness).<\/li>\n\n\n\n<li><strong>Grade 2<\/strong>: Deeper ulcer (tendons, not bone).<\/li>\n\n\n\n<li><strong>Grade 3<\/strong>: Osteitis\/osteomyelitis (bone involvement).<\/li>\n\n\n\n<li><strong>Grade 4<\/strong>: Partial gangrene (e.g., toes\/forefoot).<\/li>\n\n\n\n<li><strong>Grade 5<\/strong>: Whole foot gangrene.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Management of Foot Ulcers<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Correct arterial insufficiency<\/strong> if present.<\/li>\n\n\n\n<li><strong>Treat infection<\/strong> aggressively (culture, antibiotics).<\/li>\n\n\n\n<li><strong>Offload pressure<\/strong> (removable cast boot, orthotics).<\/li>\n\n\n\n<li><strong>Debride<\/strong> devitalized tissue.<\/li>\n\n\n\n<li><strong>Imaging<\/strong> for suspected osteomyelitis \u2192 plain X-ray, MRI, bone scan.<\/li>\n\n\n\n<li><strong>Surgical resection<\/strong> for infected bone or extensive gangrene.<\/li>\n\n\n\n<li><strong>Self-amputation<\/strong> may occur if localized, noninfected necrosis (e.g., toe tip). Larger gangrene \u2192 urgent vascular, orthopedic consult.<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>DIABETIC KETOACIDOSIS (DKA) Definition and Pathophysiology Clinical Presentation Laboratory Findings Differential Diagnosis Treatment and Management DIABETIC RETINOPATHY Overview Pathogenesis Nonproliferative Retinopathy (NPDR) Proliferative Retinopathy&hellip;<\/p>\n","protected":false},"featured_media":0,"template":"","oen_topic_chapter":[686],"class_list":["post-4422481","oen_topic","type-oen_topic","status-publish","hentry","oen_topic_chapter-the-pancreas"],"_links":{"self":[{"href":"https:\/\/myendoconsult.com\/learn\/wp-json\/wp\/v2\/oen_topic\/4422481","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/myendoconsult.com\/learn\/wp-json\/wp\/v2\/oen_topic"}],"about":[{"href":"https:\/\/myendoconsult.com\/learn\/wp-json\/wp\/v2\/types\/oen_topic"}],"version-history":[{"count":7,"href":"https:\/\/myendoconsult.com\/learn\/wp-json\/wp\/v2\/oen_topic\/4422481\/revisions"}],"predecessor-version":[{"id":4422755,"href":"https:\/\/myendoconsult.com\/learn\/wp-json\/wp\/v2\/oen_topic\/4422481\/revisions\/4422755"}],"wp:attachment":[{"href":"https:\/\/myendoconsult.com\/learn\/wp-json\/wp\/v2\/media?parent=4422481"}],"wp:term":[{"taxonomy":"oen_topic_chapter","embeddable":true,"href":"https:\/\/myendoconsult.com\/learn\/wp-json\/wp\/v2\/oen_topic_chapter?post=4422481"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}