Electrolytes II Flashcards
Na+ range
135 - 145
K+ range
3.5 - 5
Ca+
Total
Ionized
Total 8.5 - 10.5 mg/ dL
Ionized 4 - 6mg / dL
Mg+ range
1.3 - 2.1mEq/L
Cl- range
95 - 105 mEq/L
PO4- phosphate
Range
2.5 - 4.5 mg/ dl
Electrolyte Relationships
Sodium / Potassium
(Similar / Inverse)
High Na = ___K
Inverse
High Na =Low K
Electrolyte Relationships
Calcium /Phosphorus
High Calcium = ___ Phosphorus
Inverse
High Ca = Low Phos
Electrolyte Relationships
Calcium / Vitamin D
Similar or Inverse
Similar
High Ca = high Vit D
Electrolyte Relationships
Magnesium/ Calcium
Similar or Inverse
Low Mg = ____ Ca
Similar
Low Mg = Low Ca
Electrolyte Relationships
Magnesium/ Potassium
Similar or Inverse
If there is high Mg there will be ___ K
Similar
High Mg = high K
Electrolyte Relationships
Magnesium/ Phosphorus
Similar or Inverse
Low Mg = ___ Phos
Inverse
Low Mg = High Phos
Besties with H²O
Sodium NA+ 135 - 145mEq/L
Fluid distribution and elimination (BP)
Sodium NA+ 135 - 145mEq/L
Transmits impulses in nerve and muscle fibers
Sodium NA+ 135 - 145mEq/L
How many weeks vacation do RNs get per year
2 atleast to start
Plus 2.5x pay for holidays
Maintained by ADH & Assisted by Aldostrone
Sodium NA+ 135 - 145mEq/L
Neurological symptoms are most likly due to this electrolyte
Sodium NA+ 135 - 145mEq/L
Labs for Diagnostic for Hyponatremia
Serium osmolality Less than….
Serum Sodium level Less than….
Urine specific gravity less than…. (unless SIADH)
What happens to the Hemocrit and plasma protein
Labs for Diagnostic for Hyponatremia
Serium osmolality (280 mOsm/kg) Less than 280
Serum Sodium level Less than 135
Urine specific gravity less than 1.010 (unless SIADH)
Hemocrit & plasma proteins elevated
Sodium levels may appear low bc too much fluid is in the body?
Isovolemic hyponatremia
This type of hyponatremia
S/S
Maybe no signs
Thrist in SIADH (High Concentration Urine, increased ADH)
Primary polydipsia
NEURO/PSYCH
Isovolemic Hyponatremia
This type of Hyponatremia
Causes
Glucocortidicoid deficiency (causing inadequate fluid filtration by kidneys)
Hypothyroidism (limited water excretion)
Renal failure (increased H2O levels)
Medication: Psych / Lithium
Tramatic Brain Injury
Adrenal Insufficiency
SIADH (too much ADH causes, increased thrist, H2O retention, increased NA+ excretion)
Isovolemic Hyponatremia
Interventions for this type Hyponatremia
Oral urea (extreme cases)
Fluid restrictions
1L q day
Increases Serum osmolality/ stabilizes ADH
High Na+ Diet
Daily weight
I & Os
NEURO CHECKS
SODIUM CHLORIDE TABS
Isovolemic hyponatremia
Diagnostics
Low urine sodium <25
Low urine osmolality <100
Hypovolemic hyponatremia
low urine sodium and low urine osmolality in the context of hyponatremia suggests a situation where the body is conserving sodium and attempting to retain water, likely due to a loss of both sodium and water (hypovolemia).
Result from conditions such as vomiting, diarrhea, excessive sweating, or the use of diuretics.