Phosphorus

Question 1

Phosphorus: lab

Answer 1

2.4-4.4mg/dL

Question 2

Phosphorus is the primary anion of

Answer 2

ICF

Question 3

phosphorus is ___ most abundant in the body

Answer 3

second most abundant element in the body (after calcium)

most found in bones and teeth

Question 4

phosphorus is metabolically active and essential to

Answer 4

muscle function
RBC
nervous system

Question 5

phosphorus is involved in

Answer 5

acid-base buffering system
mitochondrial formation of ATP 
cellular uptake and use of glucose
metabolism of carbohydrates, proteins and fat
inversely related to calcium

Question 6

what maintains serum phosphorus levels and balance

Answer 6

PTH

Question 7

what is the major route for phosphorus secretion?

Answer 7

kidneys (regulation requires adequate renal functioning)

Question 8

when PTH levels are too low, the kidneys

Answer 8

reabsorbs additional phosphorus

Question 9

high serum phosphate levels cause

Answer 9

a low calcium concentration in serum

Question 10

low serum Ca levels stimulate release of PTH which

Answer 10

dec reabsorption of phosphorus

Question 11

what is absorption influenced by?

Answer 11

vit D

Question 12

what is phosphorus needed for?

Answer 12

production of ATP

Question 13

maintains WBC functioning

Answer 13

phagocytosis

platelet function

Question 14

hyperphosphatemia: Pts at risk

Answer 14

high serum phosphate
acute kidney injury or chronic kidney disease(cant excrete phosphate)
dec excretion 
hypoparathyroidism
enemas- P containing

Question 15

hyperphosphatemia: assessment

Answer 15

inc nerve impulse transmission

low Ca S&S

Question 16

hyperphosphatemia: assessment- mild

Answer 16

asymptomatic

Question 17

hyperphosphatemia: assessment- severe

Answer 17

low serum Ca levels with high serum phosphate levels

tetany. muscle cramps, paresthesias, seizures

Question 18

hyperphosphatemia: assessment- inc levels of phosphate readily precipitate with Ca

Answer 18

found in soft tissues: joints, arteries, skin, kidneys, and corneas and produce organ dysfunction- RF

Question 19

hypophosphatemia: pt at risk

Answer 19

low serum phosphate

Question 20

hypophosphatemia: pt at risk- dietary changes

Answer 20

malnutrition/malabsorption
chronic alcoholism (dec dietary intake, diuresis)

Question 21

hypophosphatemia: pt at risk- GI abnormalities

Answer 21

vomiting, anorexia
chronic diarrhea
intestinal malabsorption

Question 22

hypophosphatemia: pt at risk- hormonal influence

Answer 22

hyperparathyroidism

Question 23

hypophosphatemia: pt at risk- med influence

Answer 23

aluminum containing antacids dec P

diuretics can dec P

Question 24

hypophosphatemia: assessment- CV

Answer 24

tissue hypoxia

dsrhythmias

Question 25

hypophosphatemia: assessment risk of infection & musculoskeletal

Answer 25

weakness, fx, rhabdomyolysis (rapid breakdown of skeletal muscle-> myoglobin-> acute RF)

Question 26

hypophosphatemia: assessment- CNS

Answer 26

CNS depression: AMS (altered mental status); Confusion

seizures with severe dec P

Question 27

hyperphosphatemia: Nsg Dx

Answer 27

dec CO r/t dysrhythmias 
ineffective breathing pattern r/t respiratory muscle weakness 
activity intolerance r/t NM weakness
administer phosphate binding meds 
dietary restriction: dairy products
avoid P laxatives and enemas

Question 28

hyperphosphatemia: Nsg Dx- treat hypocalcemia

Answer 28

providing hydration and instituting measures to correct Ca levels assist with returning phosphorus levels to normal

Question 29

hypophosphatemia: Nsg Dx

Answer 29

impaired physical mobility
dec CO 
injury 
infection 
DC/change med

Question 30

hypophosphatemia: Nsg Dx: prevent infection

Answer 30

hand washing, mask, WBC

Question 31

hypophosphatemia: Nsg Dx: P replacement

Answer 31

dairy products

IV Phosphate- assess for hypcalcemia

Question 32

hypophosphatemia: Nsg Dx: Dec Ca intake

Answer 32

avoid antacids and Ca supplements

Question 33

hypophosphatemia: Nsg Dx: monitor

Answer 33

respirations- rate and depth

HF