Lab medicine Flashcards
1
Q
Serum urine/ creatinine
A
- Increases with low GFR and muscle break down
2
Q
- Creatinine clearance
A
- Amount of certain cleared through kidneys- calculated
- Input into crockcroft gault equation for med dosing
3
Q
BUN
A
- Assessment of nitrogen
- Increased = azotemia
- Increases in many renal issues
- Decreases with malnourishment, liver damage
4
Q
BUN: Creatinine
A
- Indication of kidney damage
- Increase = prerenal damage
- Normal = postrenal
- Decreased = intrinsic kidney damage
5
Q
Fractional excretion of sodium
A
- % sodium filtered in glomerulus and excreted
- low = sodium retention, prerenal injury
- High = renal tubular damgae
6
Q
Anion gap
A
Evaluation of metabolic acidosis
- High = acidosis
7
Q
24 hr urine protein
A
- Increase albumin = kidney damage
8
Q
Urine sodium
A
- Assessment of adherence to sodium restriction
Hyponatremia- Volume depletion or SIADH
Hypernatremia- not enough water
9
Q
Urine osmolality
A
- Number of particles dissolved in urine
- assesses concentration ability of kidney and dehydration
10
Q
KUB plain film
A
Gas, mass, bones & stones
- Renal size
- Bladder distension
- Calcifications
- Bony lesions
11
Q
Abd/ pelvic US
A
- Kidney size
- Obstruction
- Lesions
- Polycystic kidney disease
- safe & inexpensive
12
Q
Abd CT
A
High cost, limited availability
- renal calculi
- small masses
- abscesses
- Vessels & ureters
13
Q
Intravenous pyelogram
A
- Low cost
- Asses kidney, ureter & bladder
- Contrast dye required- contraindicated in AKI, CKD, multiple myeloma
