care 2 Flashcards
m (54 cards)
What are the functions of the kidneys when working normally?
Blood pressure regulation
The kidneys play a crucial role in maintaining blood pressure through fluid balance and electrolyte regulation.
What laboratory tests are used to assess kidney function?
- Specific gravity
- Urine osmolality
- 24 hour creatinine clearance
- Serum creatinine
- Urea nitrogen (BUN)
These tests help evaluate how well the kidneys are filtering waste and regulating fluids.
Define azotemia.
Increased amounts of nitrogen in the blood
What is proteinuria?
Increased excretion of protein in the urine (>150mg/24hr)
What does pyuria indicate?
Clouded urine due to pus formation in the urinary tract
What is oliguria?
Urinary output of < 400 cc per day
Define anuria.
Decrease of urine volume to less than 200 ml per 24 hr
What is pyelonephritis?
A bacterial infection of the upper urinary tract, affecting the kidneys and ureters
What are the clinical manifestations of acute pyelonephritis?
- Chills
- Fever
- Nausea
- Vomiting
- Abdominal pain
- Diarrhea
- Hematuria
- Flank pain
- CVA tenderness
- Leukocytosis
- Bacteria and WBCs in urine
- UTI symptoms (urgency & frequency)
What differentiates chronic pyelonephritis from acute?
Chronic pyelonephritis shows no symptoms of infection unless there is an acute exacerbation
What are the diagnostic methods for acute pyelonephritis?
- Urine culture & sensitivity
- Ultrasound
- CT Scan
- IV pyelogram
What is the management for acute pyelonephritis?
- High risk for bacteremia
- Antibiotics (parenteral for 24-48 hours)
- Hydration (3 L/day)
- Monitor urinary output
- Pain management
What is hydronephrosis?
Distension of the kidney due to urine accumulation from obstruction
What are the clinical manifestations of hydronephrosis?
- May be asymptomatic
- Pain
- Azotemia
- Oliguria or anuria
- Infection symptoms
What is the nursing management for a nephrostomy tube?
- Observe for bleeding, stones, fistula formation, & infection
- Never clamp off the tube
- Irrigation only by MD with sterile saline
- Encourage fluid intake
What is glomerulonephritis?
An autoimmune disorder characterized by inflammation of the glomerular capillaries
What are the signs and symptoms of acute glomerulonephritis?
- Hematuria
- Edema
- Azotemia
- Decreased urine volume
- Abd pain
- Fever
- Cough
- SOB
- Proteinuria
What underlying infection can precede glomerulonephritis?
Group A beta-hemolytic streptococcal infection of the throat
What is nephrotic syndrome?
A chronic kidney disease characterized by increased glomerular permeability resulting in massive proteinuria
What are the major complications of nephrotic syndrome?
- Infection
- Thromboembolism
- Acute renal failure
- Chronic renal failure
- Hypertension
- Hypercholesterolemia
- Elevated triglycerides
What dietary restrictions are recommended for calcium oxalate stones?
- Reducing sodium (no more than 2.3 g/day)
- Reducing animal protein
- Adequate calcium intake
- Avoiding high oxalate foods
What are the three types of acute kidney injury etiologies?
- Prerenal
- Intrarenal
- Postrenal
What causes prerenal acute kidney injury?
Factors external to the kidneys that reduce renal blood flow
What can cause intrarenal acute kidney injury?
Conditions that directly damage kidney tissue, such as nephrotoxins or prolonged ischemia