fluids and electrolyte pharma
TRANSCRIPT
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Describe Osmolality and Tonicity
Discuss the iso-osmolality range for serum
and isotonicity of intrav enous soluti ons.
Describe the four c lassif ications of
intrav enous fluids.Diff erentiate betwee n cations and an ions of
electr oly tes.
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Exp lain the m ajor f unction of cations.
Discuss e xamp les of p otassium , calcium , and magnesium supp leme nts.
Exp lain the meth ods use d to correct potassium , calcium , and magnesium e xcess.
Describe se v eral signs and s y mp toms of h y p okalemia,
h y p erkalemia, h y ponatremia, h y p ernatremia,h y p ocalcemia, h y p ercalcemia, h y p oc h loremia,h y p erc h loremia, h y p oph os ph atemia,h y p er ph os ph atemia.
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Exp lain the pharm acok inetics and
pharm acod y namics of oral and intrav enous
potassium ch loride and calcium s alts.
Describe the assessme nts , nsg. Inter v entions, and
client te aching for fluid, potassium , sodium , calcium , and magnesium imb alances.
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DISTRIBUTON OF BODY FLUIDS
INTRACELLULAR FLUIDfound w it h in the ce lls of the b od y
EXTRACELLULAR FLUIDfound outside the ce lls and counts about 1/3 of total body fluids.
y Intravascu lar fluid or p lasmay
Interstiti al fluidy Others c ompartme nts of ECF:
y L y mphy Transcellular fluid
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Is expresse d as osmoles or mi lliosmoles per kilogram
(mOsm/ kg) of water.
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:H as the s ame proportion of weight of partic les
(Na, glucose, ure a, protein) and water.
H as f ewer partic les th an water.
H as more partic les th an water.
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:
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Norm al Serum Osmolalit y 275-295 mOsm/ kg
H y po-osmolarSerum Osmolalit y is less th an 275 mOsm/ kg
Ma y be the resu lt of excess water i ntake or fluid o v erload (edem a).
H y per- osmolar
Serum Osmolalit y is greater th an 295 mOsm/ kgIt pulls the fluid right out the ce ll and deh y drates thepatient
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mOsm/ kgD5W 250
NSS or NaCl 310LR sol n 275R ingers s ol n 310
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Sodium
PotassiumCalciumMagnesiumCh loridePhosphorus
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Maintaining fluid balance
Contributi ng to acid-base re gulation
Facilitating enz y me re actions
Transmitti ng neur omuscu lar re actions
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Sodium and Potassium
Norm al le v el of NaECF = 135-145 mEq / L
ICF = 3.5-5 mEq/ L
Norm al le v el of KICF = 135-145 mEq/ L
ECF = 3.5-5 mEq /L
Na K pump
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(Na 135 mEq/L)
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(Na 145 mEq/L)
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Peri odic table
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(K 3.5mEq/L)
Metabolic Alkalosis
U OTissue tr aum a, injur y Vomiti ng (loos H ion)
insu lin
y Ectop ic be adsy
Nausea and v omiti ngy A bdomina l diste ntion-droped perist alsisy Skeletal musc les
weakness
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V EGET ABLES FR U ITS B E V ER A GESy B aked potato B anana A pricot nectary A sparagus A pricot M ilky R a w carrot C an taloupe O range juicey R a w tomato O rangey S p inach D ried f ruits
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(K 5.3 mEq/L)Causes : S/S:
TxTx::
Drugs:Drugs: Kayexalate
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(8 .5 10.5 mEq/L)
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(Ca 8 mg/dL)
y Intake of Ca and
v itamin Dy Lactose intolerancey Kidne y f ailurey CRF?y Diuretics
y (+) Trosseau s signy (+) Ch v ostek s signy Irre gular pulsesy We akness
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(Ca 10.5 mg/dL)
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(1.5-2.5 mEq/L)
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I V magnesium su lf ate
Calcium glucona te
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(1.7-2.6 mEq/L)
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