01 - serum chem Flashcards
1
Q
4 ↑BUN
A
- pre-renal (dehydration, ↓ CO, shock)
- renal (↓GFR): inflam/degen/cancer/toxic
- post-renal: urinary outflow obstruction
- GI bleeding
2
Q
2 ↓BUN
A
- ↓hepatic: shunt, ↓hepatic mass, anorexia
- ↑urea excretion: PU/PD, diuresis
3
Q
↑ creatinine
A
- ↓GFR (pre/renal/post)
- ↑ muscle mass
4
Q
↓ creatinine
A
- low BCS/muscle wasting
5
Q
5 ↑Phosphorus
A
- ↓GFR (pre/renal/post)
- hypoparathyroidism
- ↑ intestinal absorption
- osteolysis
- normal bone growth
6
Q
7 ↓Phosphorus
A
- ↑ renal excretion
- anorexia
- intestinal malabsorption
- hypovitaminosis D
- hypercalcemia of malignancy
- 1° hyperparathyroidism
- ↑insulin
7
Q
7 ↑ Calcium
A
- malignancy
- addison’s
- 1° hyperPTH
- osteolysis
- granulomas
- ↑ vit D
- renal failure
8
Q
7 ↓ Calcium
A
- ↓ albumin
- renal failure
- pancreatitis
- hypoparathyroidism
- EPI
- malabsorption
- ethylene glycol
9
Q
1 ↑ Magesium
A
- ↓ GFR
10
Q
4 ↓ Magnesium
A
- ↓ protein
- diuresis
- ↓ GI absorption
- endocrine dz
11
Q
2 ↑ total protein
A
- dehydration
- hyperglobulinemia
12
Q
5 ↓ total protein
A
- hemorrhage
- ↓ albumin
- liver failure
- overhydration
- starvation
13
Q
5 ↓ albumin/↓ globulin
A
- overhydration
- 3rd space
- GI dz (PLE, maldigestion/absorption)
- cutaneous (deep pyoderma/burns)
- external blood loss
14
Q
1 ↓ albumin/normal globulin
A
- PLN
15
Q
3 ↓ albumin/↑ globulins
A
- inflammation
- cancer: lymphoma/mult myeloma
- liver failure
16
Q
1 ↑ albumin/↑↓ globulins
A
dehydration
17
Q
5 ↑ sodium
A
- ↓ water intake
- panting
- vomiting
- diarrhea
- renal diuresis
18
Q
3 ↓ sodium (sub categories)
A
- dilutional
- loss of Na > water (diarrhea, renal dz, addisons)
- loss of Na=water, replaced by water (hemorrhage, 3rd space loss, exudative skin lesions, diarrhea)