week 11 lab values

Question 1

anthropometric data

Answer 1

HT, WT, BMI, Body compensation

Question 2

Ht is rounded to the nearest

Answer 2

quarter

Question 3

wt use a

Answer 3

digital scale, must be calibrated round to the nearest quarter pd

Question 4

body comp

Answer 4

between fat and lean muscle, skin fold (triceps, scapula, iliac crests, upper thigh

Question 5

hydrostatic weighing

Answer 5

done under water, more accurate measure of body density

Question 6

serum albumin blood test

Answer 6

only produced by liver and maintains oncotic pressure in vascular space
normal 3.5-5gm
if fluid leaks out to interstitial space peritoneal cavity
when albumin is low, calcium is usually low to
many drugs are bound to albumin when they are

Question 7

total lymphocyte count TLC

Answer 7

protein and calorie deficits interfere w/ immune function, resulting in a low TLC
normal 2500 mm
1500 or less is consistent w. protein calorie malnutrition
decrease TLC may also indicate autoimmune disease such as lupus

Question 8

urine creatine

Answer 8

based on ht index
normal 0.6-1.5mg
low indicates muscle atrophy
high usually indicates nephron damage

Question 9

nitrogen balance

Answer 9

lg nitrogen in each 6g protein
determined by collecting a 24h urine
formula is applied to determine if there is a negative balance=(protein calorie defefiecy) pt may need protein supplements or TEN/TPN

Question 10

mean corpuscular volume (MCV)

Answer 10

measure size of RBC
if PT is anemic, the MCV will help determine the type anemia
low MCV-iron defiency anemia (lead poisoning)
High MCV-liver disease (marker recent alcohol intake)

Question 11

transferrin saturation

Answer 11

transferrin is a protein that transports iron
low anemia
high iron overload
test is calculated from serum iron and the total iron binding capacity
malnutrition will make the result low as will iron deficiency anemia

Question 12

conjugated Bilirubin

Answer 12

by product of the normal breakdown of RBC
excreted in the bile salts into the intestine
increase indicates an obstruction of bile the normal flow of bile
common cause gall stones
clay colored stools-inability to digest fat

Question 13

Urine PH

Answer 13

High volume PH=alkaline =fruits and veggies

• meatless diets
• low urine PH- acidic meats and eggs in the diet

Question 14

Glucosuria

Answer 14

sugar spilled into urine
indicated hyperglycemia
blood sugar
TPN infused to quickly faster that the pancreas can produce insulin to take of the sugar
insulin may be added to TPN bag

Question 15

Key tones in the urine

Answer 15

presence means body is using fat as the main source of energy
fats used when glucose is not available
reasons include glucose not being able to into the cells because of insulin resistance
reason why adkins diet not recommened