Fluid Imbalance

Nursing Students Student Assist

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I will be presenting in our clinical post-conference about Fluid imabalance, specifically hypo/hypernatremia. Any ideas how I can make it interesting and easy to understand? hand-out?

Thank you in advance!

Specializes in med/surg, telemetry, IV therapy, mgmt.

i can save you a lot of research. here is all the information i have on sodium:

  • major cation in the extracellular space - promotes neuromuscular function - reflects the balance between dietary sodium intake and renal excretion
  • normal adult:
    • 135-145 meq/liter
    • (135-145 mmol/liter)

    [*]normal urine sodium:

    • 27-287 meq/24 hrs
    • (27-287 mmol/24 hrs)

    [*]panic (critical) values:

    • below120 meq/liter
    • above 160 meq/liter

    [*]hypernatremia

    • elevated blood pressure (hypertension)
    • elevated pulse (tachycardia)
    • elevated temperature
    • elevated respiratory rate, possible dyspnea
    • increased body weight
    • bounding peripheral pulses
    • moist mucous membranes
    • moist respiratory secretions
    • crackles in lungs on auscultation
    • fever
    • edema (may be pitting)
    • dry skin
    • thirst
    • weakness
    • restlessness/agitation
    • disorientation
    • delusions
    • hallucinations
    • lethargic when undisturbed
    • irritable when stimulated
    • muscle irritability
    • diminished or absent dtrs
    • high pitched cry in infants
    • seizures
    • coma (due to swelling of brain cells)
    • respiratory arrest due to increased osmotic pressure

    [*]causes of hypernatremia

    • increased sodium intake:
      • excessive dietary intake of sodium or water
      • excessive saline in iv therapy
      • excessive infusion of isotonic iv solutions

      [*]decreased sodium loss:

      • cushing's syndrome
      • hyperaldosteronism
      • decreased water output due to renal disease

      [*]excessive body water loss:

      • excessive sweating
      • extensive burns
      • dehydration
      • diabetes insipidus
      • osmotic diuresis

      [*]other causes of increased water:

      • azotemia
      • heart failure
      • pulmonary edema
      • lactic acidosis
      • long term administration of adrenocortidal hormones

    [*]hyponatremia

    • increased pulse (tachycardia)
    • weak, thready peripheral pulses
    • flat neck veins
    • increased respiratory rate
    • decreased blood pressure (hypotension)
    • decreased body weight
    • thick, slurred speech
    • anorexia
    • nausea/vomiting/abdominal cramps
    • oliguria
    • anuria
    • lethargy/malaise
    • headache
    • confusion
    • muscular twitching
    • seizures
    • coma
    • respiratory arrest

    [*]causes of hyponatremia

    • decreased sodium intake:
      • insufficient dietary intake
      • deficient sodium in iv fluids
      • n/g feeding with inadequate fluid

      [*]increased sodium loss:

      • addison's disease
      • fever
      • diarrhea
      • vomiting
      • excessive use of diuretics
      • chronic renal insufficiency
      • nephrotic syndrome

      [*]excessive body water gains:

      • excessive oral intake
      • excessive iv water intake
      • chf
      • siadh (syndrome of inappropriate secretion of adh)
      • osmotic dilution

      [*]third-space losses of sodium:

      • ascites
      • peripheral edema
      • pleural effusion
      • ileus or mechanical bowel obstruction
      • hidden fluid in body cavities

references: fluid & electrolyte balance: nursing considerations, 4th edition, by norma m. metheny; davis's comprehensive handbook of laboratory and diagnostic tests with nursing implications, 2nd edition, by anne m. van leeuwen, todd r. kranpitz, and lynette smith; mosby's diagnostic and laboratory test reference, 4th edition, by kathleen deska pagana and timothy james pagana; nurse's 5-minute clinical consult: diagnostic tests, published by wolter kluwer/lippincott williams & wilkins health, 2008; saunder's comprehensive review for the nclex-rn examination, 3rd edition, by linda anne silvestri; pathophysiology: the biologic basis for disease in adults and children, third edition, by kathryn l. mccance and sue e. heuther; pathophysiology: a 2-in-1 reference for nurses by springhouse, springhouse publishing company staff; memory notebook of nursing, volume ii, 2nd edition, by joann zerwekh, jo carol claborn, and c.j. miller

thank you so much! I will definitely use this.

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