Renal system

Anatomy and Physiology of the Renal System

• Overview of the Renal System

  • Kidneys

  • Structure: Draw Picture and label key parts

  • Functions:

    • Filtration of blood to produce urine

    • Regulation of blood pressure through the renin-angiotensin system

    • Regulation of electrolyte balance

    • Maintenance of acid-base balance

    • Erythropoiesis regulation via erythropoietin production

    • Metabolism of vitamin D to its active form

Assessment Data

Subjective Assessment

• Questions:

  • What is your current urinary pattern? (Identifies potential dysfunction)

  • Any history of renal disease in family? (Assess genetic risk)

  • Any pain or discomfort experienced? (PINPOINT the issue)

  • Are you taking any diuretics? (Medication-induced changes in urine output)

Objective Data

• Techniques Used:

  • Auscultation: Assess for bruits over renal arteries indicating potential vascular disease

  • Inspection: Observe for any signs of edema or skin changes

  • Palpation: Check for kidney tenderness and any mass

• Documentation of Findings: Important for tracking renal function over time

Changes Related to Aging

• Reduced renal blood flow

• Decreased glomerular filtration rate (GFR)

• Higher risk for urinary incontinence

Diagnostic Tests

• BUN (Blood Urea Nitrogen):

  • Obtained via blood draw

  • High levels indicate reduced kidney function

  • Nursing considerations: Ensure hydration prior to test

  • Patient Teaching: Explain purpose, process, and significance of results

• Creatinine:

  • Obtained through blood sample

  • Elevated levels suggest impaired kidney function

  • Nursing considerations: Monitor for dehydration post blood draw

  • Patient Teaching: Describe the test and typical levels

• Urinalysis:

  • Collected via clean-catch or catheterization

  • Assess for presence of proteins, glucose, blood, and special gravity

  • Nursing considerations: Instruct on collection technique

  • Patient Teaching: Explain what to look for in results

Cystoscopy

• Definition: A procedure using a cystoscope to visualize the bladder

• Nursing Considerations: Prepare the patient for the procedure, ensure informed consent is obtained

• Patient Teaching: Explain sensations during the procedure, discuss post-procedure expectations (e.g., hematuria)

KUB (Kidneys, Ureters, Bladder) Imaging

• Definition: A type of X-ray to assess the size and shape of urinary organs

• Nursing Considerations: Ensure no prior contrast medium is used unless cleared

• Patient Teaching: Inform regarding the procedure and possible follow-up actions based on findings

Biopsy

• Description: Involves obtaining a small piece of kidney tissue for examination

• How Performed: Needle inserted into the kidney under imaging guidance

• Nursing Considerations: Monitor for bleeding and infection post-procedure

• Patient Teaching: Discuss risks, benefits, and what findings might indicate

Nursing Interventions

Urinary Asepsis

• Importance of maintaining sterile technique to prevent UTI

Catheter Cares

• Care procedures to reduce risk of CAUTI (Catheter-Associated Urinary Tract Infection)

• Regular cleaning of insertion site and maintaining patency of the catheter

Disorder: Renal Failure

Etiology

• Causes:

  • Acute: Hypovolemia, nephotoxic drugs, acute glomerulonephritis

  • Chronic: Diabetes, hypertension, chronic glomerulonephritis

Clinical Manifestations

• Decreased urine output

• Edema and fluid overload

• Electrolyte imbalances (e.g., hyperkalemia)

Assessment

• Monitor vital signs, fluid status, and laboratory results

Diagnostic Tests

• Blood tests (BUN, creatinine)

• Urinalysis

• Imaging studies to assess kidney structure

Medical Management

• Dialysis options: Hemodialysis vs. peritoneal dialysis

• Medications: Electrolyte supplements, antihypertensives

Nursing Interventions

• Monitor for complications (fluid overload, electrolyte imbalances)

• Education on dietary modifications (low potassium diet)

Patient Teaching

• Explain signs of potential complications and when to seek help

Disorder: Renal Calculi

Etiology

• Risk factors include dehydration, urinary stasis, high protein diets, and obesity

Clinical Manifestations

• Severe flank pain, hematuria, nausea, and vomiting

Assessment

• Pain management, assess for urinary symptoms

Diagnostic Tests

• CT scan for stone location

• Urinalysis to check for crystalluria

Medical Management

• Pain management and hydration to promote passage

• Surgical options if necessary (e.g., lithotripsy)

Nursing Interventions

• Providing education on dietary modifications to prevent recurrence

Patient Teaching

• Awareness of symptoms and importance of hydration

Disorder: Urinary Tract Infection (UTI)

• Complications and Teaching: Discuss the potential for recurrent infections, antibiotic resistance, and importance of completing prescribed antibiotics

Disorder: Benign Prostatic Hyperplasia (BPH)

Etiology

• Age-related hyperplasia of prostatic tissue

Clinical Manifestations

• Symptoms: Frequent urination, nocturia, difficulty starting urination

Assessment

• Assess urinary pattern and perform a digital rectal exam (DRE)

Diagnostic Tests

• PSA levels, ultrasound of the prostate

Medical Management

• Medications: Alpha-blockers, 5-alpha-reductase inhibitors

Nursing Interventions

• Education on managing symptoms and medication adherence

Patient Teaching

• Discuss lifestyle modifications to alleviate symptoms (e.g., avoid caffeine)

Disorder: TURP Education

• Post-operative care for Transurethral Resection of the Prostate

• Complications include bleeding and infection, highlight importance of monitoring output and signs of infection

Disorder: Hypospadias

Etiology

• Congenital condition where urethra opens on the underside of the penis

Clinical Manifestations

• Variability: location of urethral opening can vary

Assessment

• Examination of the genitalia in newborns

Diagnostic Tests

• Typically diagnosed on physical examination

Medical Management

• Surgical correction usually performed before age 18 months

Nursing Interventions

• Pre-operative and post-operative care considerations, educating parents on procedure and care

Patient Teaching

• Importance of follow-up appointments to ensure proper healing and development