LEC 7 - PHOSPHOROUS

Question 1

It is an important constituent in nucleic acid, phospholipid
and phosphoproteins,

Answer 1

PHOSPHORUS

Question 2

in PHOSPHORUS we are determining __

Answer 2

phosphate

Question 3

inorganic phosphorous

Answer 3

phosphates

Question 4

Phosphorous

It forms high energy compounds such as ______and is involved in intermediary metabolism and
various enzyme systems

Answer 4

ATP and cofactor
(NADP)

Question 5

It is essential for muscle contractility, neurologic function,
and electrolyte transport and oxygen-carrying by
hemoglobin.

Answer 5

PHOSPHORUS

Question 6

is the primary factor that increase phosphate

Answer 6

Vitamin D

Question 7

relationship of PTH to phosphate

Answer 7

inversely - PTH want calcium

Question 8

hyperphosphatemia usual cause

Answer 8

Decrease renal excretion in acute and chronic renal failure

Question 9

Increase intake with excessive oral, rectal, intravenous
administration.

hyper or hypo?

Answer 9

hyperphosphatemia

Question 10

Increase extracellular load due to transcellular shift in acidosis in phosphate

Answer 10

hyperphosphatemia

Question 11

Secondary to over medication with Vitamin D and
production of Vitamin by granulomatous tissue.

effect to phosphate

Answer 11

hyperphosphatemia

Question 12

phosphate is usually seen in children ___

Answer 12

drinking cow’s milk

Question 13

phosphate is usually seen in adult ___

Answer 13

taking laxatives

Question 14

patients with lymphoblastic leukemia

hyperphosphatemia or hypo?

Answer 14

hyperphosphatemia

Question 15

Hypoparathyroidism

hyperphosphatemia or hypo?

Answer 15

hyper

Question 16

t is a condition characterized by a serum phosphorus
concentration below the lower limit of the reference interval

Answer 16

HYPOPHOSPHATEMIA

Question 17

HYPOPHOSPHATEMIA can be seen in

Answer 17

o Alcohol abuse
o Intestinal loss due to vomiting, diarrhea, and use of phosphate binding antacids
o Induced by a shift of phosphorus from extracellular fluid into cells.

Question 18

decreased intestinal absorption, as with vitamin D
deficiency or antacid use and steatorrhea

hyperphosphatemia or hypo?

Answer 18

hypo

Question 19

Most of the current methods for phosphorus determination
involve the formation of an ____

Answer 19

ammonium
phosphomolybdate complex

Question 20

an ammonium
phosphomolybdate complex.
o This colorless complex can be measured by ultraviolet
absorption at _____ nm

Answer 20

340

Question 21

• Most of the current methods for phosphorus determination
  involve the formation of an ammonium
  phosphomolybdate complex.

o This colorless complex can be measured by ultraviolet
absorption at 340 nm or can be reduced to form molybdenum blue, a stable blue chromophore, which
is read between _____ nm.

Answer 21

600 and 700

Question 22

Reaction of phosphate with ammonium molybdate (_____)

Answer 22

FISKE SUBBAROW

Question 23

REFERENCE INTERVAL for phosphorous

Answer 23

Inserts
* Adult: 2.8-4.5 mg/dL (0.89-1.44mmol/L)
* Children: 4.0-7.0mg/dL (1.29-2.26mmol/L)