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70 Cards in this Set

  • Front
  • Back

Normal total water intake

2,500 mL

sodium (na+) ranges

135-145 mEq/L

Potassium normal ranges (k+)

3.5-5.0 mEq/L

calcium (ca+) normal ranges

8.4-10.6 mg/dL

magnesium (mg+) normal ranges

1.3-2.1 mg/dL

phosphate (-po)

2.7-4.5 mg/dL

chloride (-cl) normal ranges

96-106 mEq/L

bicarbonate (-hco3) normal ranges

22-26 mEq/L

body has how many liters of circulating blood vol.

4-6 liters

thirst mechanism is located in the

hypothalamus

process by which substances move back and forth across a membrane ... move from high to low concentration in

diffusion

movement of a pure solvent across a membrane... from less solute to a greater concentration

osmosis

healthy kidney regulates fluid and electrolyte balance by regulating the

volume and composition of ecf (extra cellular fluid)

s/s of dehydration

dizziness, confusion, cool, dry skin, dark urine, lower b.p., elevated temp., flat veins, + pulse, skin turgor, thirst, weak, thready pulse, weakness


Makes up approximately 1/3 of the total body water and high in sodium content

Extracellular Fluid

fluid within the blood vessels

Intravascular Fluid


Gastrointestinal secretions,


Pleural, peritoneal, synovial, and pericardial fluids

Transcellular Fluids

s/s of overhydration


Weight gain


Crackles in the lungs (wet lungs)


Slow bounding pulse


Elevated blood pressure


Possibly edema


Hyponatremia causes


Sodium deficit; can be from decreased sodium or increased water intake and retention (May be caused by excessive vomiting or diarrhea) loss of bile

Hypernatremia causes


Sodium excess; most commonly from water loss from fever or respiratory infection


Hypokalemia causes

inadequate potassium or loss of body water; may be from poor diet, vomiting, diarrhea, excessive sweating, or diuretic therapy


Hyperkalemia causes


Occurs with burns, crush injuries, uncontrolled diabetes mellitus, and renal failure


Hypocalcemia causes


Occurs with nutritional deficiency of calcium or vitamin D or in bone disorders such as metastatic cancer of the bone (shift of calcium into the bone)

Hypercalcemia causes


Most cases related to hyperparathyroidism or malignancy such as multiple myeloma, excess of vitamin d or antacids

Hypomagnesemia causes

malabsorption, malnutrition, renal tubular dysfunction, thiazide diuretic use, extensive gastric suction, or diarrhea

Hypermagnesemia

Occurs only in presence of renal failure, near drowning of sea water and overuse of antacids


Hypochloremia a Chloride level below 96 mEq/L is associated with

hyponatremia, usually from severe vomiting

Hyperchloremia a chloride level above 106 mEq/L is associated with

hypernatremia and a form of metabolic acidosis

Hypophosphatemia causes

result from use of aluminum-containing antacids, from vitamin D deficiency, or from hyperparathyroidism

Hyperphosphatemia causes

Commonly occurs in renal failure


Death may occur if pH is

less than 6.8 or greater than 7.8


Carbonic acid retained or removed by

respiratory system

Bicarbonate retained or removed by

kidneys

Acts as buffer to neutralize excess acids in the body and maintain bicarbonate-to-carbonic acid ratio


Bicarbonate

bicarbonate-to-carbonic acid ratio at

20:1

Acid-Base Balance Control mechanisms

Blood buffer system, Lungs,Urinary system

Respiratory Acidosis

pH will be decreased, below 7.35


Airway obstruction


Pneumonia, asthma


Chest injuries


Opiate intake


Chronic obstructive lung disease

Metabolic Acidosis

•pH is below 7.35. (bicarbonate level will be below 22)

Kidney disease


Diabetic ketoacidosis (Kussmaul’s)


Circulatory failure


Shock states

Respiratory Alkalosis

pH will be greater than 7.45


Anxiety


High fever


Hyperventilation


Salicylate poisoning (ASA overdose)


Encephalitis

Metabolic Alkalosis


•pH greater than 7.45 (•bicarbonate will be greater than 26)


loss of acid, commonly caused by gastric suction by Ng tube or ingestion of too much baking soda (sodium bicarbonate).


Vomiting


Excessive antacid consumption


Diuretic therapy


Potassium deficit

signs and symptoms •Hyponatremia

•Altered LOC•Anxiety•Nausea, vomiting

signs and symptoms •Hypernatremia

•Dry mucous membranes•Thirst•Weakness, lethargy

signs and symptoms Hypokalemia

•Abdominal pain, cardiac dysrhythmia •Paralytic ileus (decreased bowel sounds), increased urine pH

signs and symptoms Hyperkalemia

•Weakness, lethargy•Paralysis•Hypotension, ECG changes

signs and symptoms Hypocalcemia

•+ Chvostek’s sign, paresthesias •Seizures, wheezing•Swallowing problems

signs and symptoms Hypercalcemia

•Anorexia, abdominal pain•Renal calculi•Fractures (due to bone loss)

signs and symptoms Hypomagnesemia

•+ Chvostek’s sign, twitching•Hypocalcemia, hypokalemia

signs and symptoms Hypermagnesemia

•Hypotension, nausea•Vomiting, paralysis•Respiratory depression, ECG changes
myplate grains recomendation
6 oz. of grains every day with at least half being whole grain products
myplate veg. recomendation
Three to five servings of vegetables are recommended
myplate fruit recomendation
Inclusion of 2 cups of fruit, with mostly fruit rather than juice, each day is recommended
myplate milk recomendation
Low-fat milk, yogurt, and cheese comprise the milk group
Which organ in the body regulates fluid and electrolyte balance?
Kidney
Hyponatremia may be caused by
congestive heart failure (CHF).
Which may cause hyperkalemia?
Renal failure
A patient has end-stage chronic obstructive pulmonary disease (COPD). Which acid-base imbalance would be predictable in a patient with COPD?
respiratory acidosis
What fluid output measurement is the most concerning for a nurse?
Urine output should be at least 30 mL/hr
clear liquids when
bowel sounds are audible
Jejunostomy tubes are placed into the
intestine
Gastrostomy tubes and PEG tubes are placed
directly into the stomach
Nephrostomy tubes are placed

in a kidney
TPN is a method of delivering nutrition through
a catheter placed in a large central vein.
High levels of high-density lipoprotein (HDL)
tend to cleanse vessels of fatty deposits.
Very-low-density lipoprotein (VLDL) is
a carrier for triglycerides in the blood.
Elevated low-density lipoprotein (LDL) causes
an increase of fat deposits on blood vessel walls.
accumulation of fatty deposits on the walls of blood vessels.
Atherosclerosis
corticosteroids cause
sodium and water retension
chloride is retained with
sodium
500 mL of water =
1.1 1lbs
1000 mL of water =
2.2 lbs or 1 kg