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Nephrology, An Issue of Primary Care: Clinics in Office Practice, E-Book

Nephrology, An Issue of Primary Care: Clinics in Office Practice, E-Book

Samuel Snyder

(2014)

Additional Information

Abstract

This issue of Primary Care: Clinics in Office Practice, devoted to Nephrology, is edited by Dr. Samuel Snyder. Articles in this issue include: Secondary hypertension; Update on ACE/ARB/DRI; Workup of proteinuria; Diagnosis and evaluation of renal cysts; NSAIDs, COX2’s and the kidney; The PCP/nephrologist partnership in advancing CKD; Nosocomial AKI; Geriatric patient with CKD; Hematuria workup; The kidney in obesity; and Renal transplant in the primary care setting.

Table of Contents

Section Title Page Action Price
Front Cover Cover
Nephrology\r i
Copyright\r ii
Contributors iii
Contents v
Primary Care: Clinics In Office Practice\r ix
Foreword\r xi
Preface\r xiii
Workup for Proteinuria 719
Key points 719
Introduction 719
How proteinuria occurs: glomerular structure and function 720
Identification and quantification of proteinuria 721
Clinical findings/classification: how to work up the patient with proteinuria 722
Case 1 726
Diabetic nephropathy 726
Case 2 726
Immunoglobulin A nephropathy 726
Case 3 727
Lupus nephritis 727
Focal segmental glomerulosclerosis 728
Chronic kidney disease classification and proteinuria 728
General aspects of therapy 730
Diet 730
Edema 731
Hypertension 731
Lipids 731
Progression of Azotemia and Other Complications 732
Summary 732
Acknowledgments 732
References 732
Work-up of Hematuria 737
Key points 737
Introduction 737
Background incidence 738
Classification 738
Diagnosis 738
Urine Microscopy 738
Cells 738
Erythrocytes 738
Leukocytes 739
Renal tubular epithelial cells 739
Squamous cells 739
Casts 739
Hyaline casts 739
Granular casts 739
Waxy casts 739
Erythrocyte casts 739
White blood cell casts 739
Crystals 739
Uric acid crystals 739
Calcium oxalate crystal 739
Cystine crystals 740
Causes 740
Renal Stones 740
Alport Syndrome (Hereditary Nephritis) 741
Thin Basement Membrane Disease 741
IgA Nephropathy 741
Exercise-Induced Hematuria 741
Hematuria Following Upper Respiratory Tract Infection 741
Poststreptococcal Glomerulonephritis 741
Nonspecific Mesangioproliferative Glomerulonephritis 741
Nonglomerular causes 742
Sickle Cell Disease and Trait 742
Acute Allergic Interstitial Nephritis 742
Transient Hematuria of the Elderly 742
Medullary Sponge Kidney 742
Tumors 742
Renal cell carcinoma 742
Bladder cancers 742
Prostate cancer 743
Rare miscellaneous etiologies 743
Arteriovenous Malformation 743
Loin Pain–Hematuria 743
Nutcracker Syndrome 743
Initial evaluation of hematuria 743
Three Tube Test 744
Renal Biopsy 744
Urine Cytology 744
Role of Radiologic Testing 745
Cystoscopy 745
Approach to discolored urine that appears as gross hematuria 746
Beeturia 746
Myoglobinuria 746
Hemoglobinuria 746
Summary 746
References 747
Secondary Hypertension, Issues in Diagnosis and Treatment 749
Key points 749
Introduction 749
Incidence/Prevalence 750
Disease descriptions 750
Secondary hypertension 751
Risk factors 751
Disease states and workup 752
Renovascular hypertension 752
Intrinsic renal disease 753
Kidney transplant 756
Primary hyperaldosteronism 756
Obstructive sleep apnea 758
Cushing syndrome 758
Coarctation of the aorta 759
Oral contraceptive pills 759
Liddle syndrome 759
Primary hyperparathyroidism 759
Hypothyroidism/Hyperthyroidism 759
Pheochromocytoma 759
New directions: experimental therapies for resistant hypertension 760
Renal Denervation 760
Electrical stimulation of carotid sinus baroreceptors 760
Summary 760
References 761
Renin-Angiotensin-Aldosterone System Inhibition 765
Key points 765
Caveats 766
Therapeutic considerations with angiotensin-converting enzyme inhibitor or angiotensin receptor blocker combination medications 766
Do angiotensin receptor blockers increase the risk of cancer? 767
Inhibition of the renin-angiotensin-aldosterone system in hypertensive diabetics with macroalbuminuria 767
Inhibition of the renin-angiotensin-aldosterone system in hypertensive diabetes with microalbuminuria 767
Inhibition of the renin-angiotensin-aldosterone system in hypertensive diabetics with normoalbuminuria 769
Inhibition of the renin-angiotensin-aldosterone system in normotensive diabetics with normoalbuminuria or microalbuminuria 769
Dual inhibition of the renin-angiotensin-aldosterone system in diabetic kidney disease 770
Inhibition of the renin-angiotensin-aldosterone system in nondiabetic chronic kidney disease 770
Inhibition of the renin-angiotensin-aldosterone system in cardiac disease after myocardial infarction 771
Inhibition of the renin-angiotensin-aldosterone system in chronic heart failure 772
Inhibition of the renin-angiotensin-aldosterone system in cerebrovascular disease 772
References 773
Evaluation of Acute Kidney Injury in the Hospital Setting 779
Key points 779
Nature of the problem 779
Definition of acute kidney injury 780
Assessment of kidney function in the hospital setting 780
Categories of acute kidney injury 781
Medication-Induced Acute Kidney Injury 781
Pre-renal Acute Kidney Injury 783
Intrinsic Acute Kidney Injury 784
Acute Tubular Necrosis 784
Interstitial Nephritis 786
Glomerular Disease 786
Acute Vascular Damage 787
Post-renal Acute Kidney Injury 788
Specific hospitalized patients at risk for acute kidney injury 788
Geriatric Population 788
Sepsis 789
Cirrhosis 791
Chronic Kidney Disease 791
Human Immunodeficiency Virus Infection 791
Perioperative Acute Kidney Injury 792
Clinical evaluation of acute kidney injury in the hospital setting 792
History and Clinical Evaluation 792
Laboratory Data 793
Radiographic imaging and diagnostic procedures 794
Treatment and prevention 795
Pre-renal 795
Acute Tubular Necrosis 797
Acute Interstitial Nephritis 797
Glomerular and Vascular Damage 797
Post-renal 798
Summary 798
References 798
Nonsteroidal Antiinflammatory Drugs, Cyclooxygenase-2, and the Kidneys 803
Key points 803
Introduction 803
The scope of the problem 804
Prostaglandins, cyclooxygenase 1 and 2, and nonsteroidal antiinflammatory drugs 804
Cyclooxygenase and the kidneys 806
Acute kidney injury 806
Hemodynamically Mediated Injury 806
Clinical Presentation 807
Management 809
Guidelines for Managing Patients with Acute Kidney Injury 809
Acute interstitial nephritis 809
Clinical Presentation 810
Management 810
Minimal Change Disease 811
Papillary necrosis 811
Clinical Presentation 812
Nonsteroidal antiinflammatory drugs and electrolyte imbalances 813
Hyponatremia 813
Hyperkalemia 813
Renal Tubular Acidosis 813
Role of Cyclooxygenase 2 Selective and Nonselective Nonsteroidal Antiinflammatory Drugs in Hypertension 813
A final word on chronic kidney disease 815
References 817
Diagnosis and Evaluation of Renal Cysts 823
Key points 823
Introduction 823
Classification of cystic disorders 824
Simple renal cysts 825
Complex renal cysts 827
Autosomal polycystic kidney disease 829
Acquired cystic kidney disease 832
Differentiating between multicystic, polycystic, and acquired renal cystic disease 833
Summary 833
References 834
The Primary Care Physician/Nephrologist Partnership in Treating Chronic Kidney Disease 837
Key points 837
Introduction 837
What Is Chronic Kidney Disease? 838
Evaluation and estimation of glomerular filtration rate and proteinuria 838
Cockcroft-Gault equation 840
Modification of diet in renal disease 840
Chronic Kidney Disease Epidemiology Collaboration 840
Cystatin C 840
Evaluation of proteinuria and albuminuria 841
Sources of error in proteinuria and factors affecting urinary albumin-to-creatinine ratio 842
Causes of Chronic Kidney Disease 842
At-risk populations 842
Physiologic Consequences and Compensation in Chronic Kidney Disease 843
Interventions to Slow the Rate of Progression of Chronic Kidney Disease 843
Hypertension in chronic renal disease 843
Renin-angiotensin-aldosterone inhibitors 844
Loop diuretics 845
Calcium channel blockers 845
Aldosterone antagonists 846
Adrenergic blockage agents 846
Antiplatelet medication 846
Glucose control in diabetic patients 846
Dietary counseling in chronic kidney disease 847
Lipid control 847
Parathyroid, calcium, phosphorus, and vitamin D 847
Anemia and acidosis 848
Anemia 848
Acidosis 849
Cardiovascular Consultation 849
Avoiding Nephrotoxins 849
Contrast Studies and MRI 849
Contrast studies 849
Nephrotoxic medications 850
Acetylcysteine 850
Note concerning metformin 850
In summary 851
MRI with gadolinium 851
Early Referral to a Nephrologist 851
Preparing for Renal Replacement Therapy 852
References 854
Evaluation and Management of the Older Adult with Chronic Kidney Disease 857
Key points 857
Epidemiology of chronic kidney disease 857
Definition of chronic kidney disease 858
Physiologic changes of aging kidney 858
Stages of chronic kidney disease 859
Evaluation of chronic kidney disease 861
Recognizing acute kidney injury as a risk factor of chronic kidney disease 861
Earlier detection of acute kidney injury: novel biomarkers 862
Prognosis of acute kidney injury and its implications with chronic kidney disease 863
The importance of preventing acute kidney injury 863
Management of diabetic nephropathy in the long-term care setting 864
Management of kidney failure in older adults 865
Definitions 865
Epidemiology of End-Stage Renal Disease in the United States 865
Risk Factors for Kidney Failure and Disease Progression 866
Approaches to Management of Kidney Failure in Older Adults 867
Renal replacement therapy (disease-oriented model) 867
Early initiation 867
Quality-of-life implications following dialysis initiation 867
United States regional variation of intensity of end-stage renal disease treatment 867
Medical management (patient-centered model) 868
Special Treatment Considerations for Patients with Kidney Failure 869
Choosing Wisely Campaign 869
Prognostic Tools for Shared Decision Making in Older Adults 869
Multidimensional Prognostic Index 870
Department of Veterans Affairs (VA) risk score (2013) 870
Hemodialysis mortality predictor: integrated prognostic model 870
Considerations for starting frail patients on dialysis 870
Summary 871
References 872
Obesity-related Kidney Disease 875
Medical Management of the Kidney Transplant Recipient 895
Key points 895
Introduction 895
Hypertension 896
Treatment 896
Diabetes mellitus 898
Treatment 899
Dyslipidemias 900
Obesity 903
Treatment 903
Summary 903
References 904
Index 907