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Barton/ Nur 202/ Fundamentals
Chapter 52 Electrolytes and Fluids
77
Health Care
Undergraduate 3
04/10/2009

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Cards

Term
Fluid Volume excess/ fluid overload/ over hydration
Definition
Fluid intake or retention that exceeds the fluid needs of the body.
Term
Fluid Volume deficit
Definition
Dehydration in which the fluid intake of the body is not sufficient to meet the body's fluid needs.
Term
Hyperkalemia
Definition
when a serum potassium level is higher than 5.0 mEq/L. (High K+)
Term
Hypocalemia
Definition
too little calcium.. a serum calcium level less than 3.5 and causes potassium lost through kidneys secondary to K+ wasting diuretics, steroids. S&S of low K+ are cardiac dysrhythmias, EKG changes, n/v, anorexia, leg cramps, muscle weakness, and decreased bowel sounds.
Term
Calcium
Definition
essential for stabilizing cell membranes, regulating muscle contraction and relaxation, maintaining cardiac function, & blood clotting.
Term
Potassium
Definition
maintains resting membrane potential of nerve/ muscle cells, excess/deficit can cause cardiac or muscle dysfunction.
Term
Hypernatremia
Definition
Na+ is greater than 145 mEq/L.
Term
Water pitcher
Definition
1,000 mL
Term
Large---Paper cup
Definition
200 mL
Term
small paper cup
Definition
120 mL
Term
what does the patient complain of when they have Respiratory Alkalosis?
Definition
Shortness of breath, chest tightness, light-headedness and numbness and tingling in extremities.
Term
What causes hyperventilation during Respiratory Alkalosis?
Definition
Extreme anxiety, elevated body temp., Over ventilation w/ ventilator. Hypoxia, Salicylate overdose..(aspirin OD)
Term
Nursing intervention for a patient in Respiratory Alkalosis
Definition
monitor Arterial Blood gas ABG'S, assist pt. with slower breathing, have client breath in paper bag or give re breather mask for --to inhale CO2
Term
Clinical manifestation during Respiratory Alkalosis
Definition
Difficult concentrating,blurred vision
Term
Lab Values for Respiratory Alkalosis
Definition
ABG=blood ph above 7.45

PaCO2 less than 35mm Hg
Term
What Chronic illness places the client at risk for Fluid and electrolyte imbalance?
Definition
COPD,Asthma, Cystic Fibrosis, Heart Failure (CHF), Kidney DX, Diabetes, Cushing's Dx, Cancer, Addisons, Malnutrition, Anorexia, bulimia,
Term
Who is at risk for acid base and fluid electrolyte imbalance?
Definition
Very old, very young, anyone who is unable to access food & fluids independently
Term
What types of treatments put clients at risk for electrolyte, fluid, and acid base imbalance?
Definition
Chemotherapy, IV & total parenteral nutrition, nasogastric suctioning, Enteral feeding, mechanical ventilation
Term
What medications can lead to an imbalance in electrolytes, acid, base and fluids?
Definition
Diuretics=Lasix, Corticosteroids=Prednisolone,NSAD's=Aleive
Term
What are acute conditions that put client at risk for Fluid, Acid base, and electrolyte imbalance?
Definition
Acute gastroenteritis = stomach virus, Bowel obstruction, Surgery, Head injury or decreased level of consciousness, trauma, ex: burns, crushing injuries, fever, draining wounds, fistulas
Term
Hypotonic Hydration will result in:
Definition
polyuria, Diarrhea, non pitting Edema, Dysrhythmias, & projectile vomiting,
Term
What is Hypotonic Overhydration?
Definition
Water intoxication...too much water..
excessive fluid moves into the intracellular spaces = all body compartments expand
Term
How does hypotonic overhydration affect the respiratory system?
Definition
^ resp rate, (shallow respiration) Dyspnea,moist crackles can be heard on Auscultation..
Term
NURSING INTERVENTION: hypotonic overhydration:
Definition
monitor Cardio system, resp system, neuromuscular, renal, skin, and gastro status, prevent more overload, & restore normal fluid balance, administer diuretics, restrict fluid intake, monitor I & O and weight. Monitor electrolyte values.
Term
Average daily fluid output for an adult:
Definition
URINE= 1,400-1,500 mL
insensible losses= lungs(350-400), skin(350-400), sweat(100), feces(100-200)
Term
This is a certain type of fluid loss that the body has to have to maintain normal body function:
Definition
Obligatory Losses= FECES
Term
This type of loss is not able to be measured as it is excreted from the body:
Definition
Ex:Lungs =through respiration and the skin
(Insensible losses)
Term
what foods are rich in (K+) potassium?
Definition
Banana, avocado, Raw carrot, baked potato, Apricot, dried fruits(raisins, dates), cantaloupe, orange, spinach, raw tomato, beef, cod, pork, veal, milk, O.J., Apricot nectar
Term
Hypercalemia
Definition
serum calcium levels higher than 10.5 mg/dL or an ionized calcium level greater than 5.0 mg/dL
Term
Metabolic Acidosis
Definition
When the bicarbonate levels are low compared to the amount of carbonic acid in the body , and PH falls...
Term
Metabolic Alkalosis
Definition
the amount of bicarbonate in the body exceeds the normal 20:1 ratio.
Term
Respiratory Alkalosis
Definition
When the person hyperventilates, more CO2 than normal is inhaled, carbonic acid levels fall and the PH rises to more than 7.45.
Term
What are common causes of respiratory acidosis?
Definition
Asthma and COPD
Term
Respiratory Acidosis
Definition
HYPOvetilation & CO2 retention cause carbonic acid levels to increase ^ and PH falls Below 7.35
Term
how are acid-base imbalances usually classified?
Definition
Respiratory or Metabolic
Term
What are some clinical manifestations with respiratory Acidosis?
Definition
Increased pulse rate, Headache, dizziness, confusion, decreased level of consciousness, Convulsions, Warm flushed
Term
What are the lab values with respiratory acidosis?
Definition
ABG= blood PH less than 7.35 and PaCO2 above 45 mm Hg HCO3 normal or slighlty elevated in acute: above 26 mEq/L in chronic
Term
Normal values for (ABG's) Arterial Blood gas
Definition
PH= 7.35-7.45
PaO2=80-100 mm Hg
PaCo2= 35 mm Hg
HCO2= 22-26 mEq/L
Base excess= -2 to +2 mEq/L
o2 saturation 95-98%
Term
Normal (SODIUM)electrolyte values
Definition
135-145 mEq/L
Term
Normal (K+) potassium electrolyte value for an adult
Definition
3.5-5.0 mEq/L
Term
Normal Chloride electrolyte value
Definition
95-108 mEq/L
Term
Normal Calcium electrolyte value for an adult
Definition
4.5-5.5 mEq/L or 8.5-10.5 mg/dL
Term
Normal Magnesium electrolyte level for an adult
Definition
1.5-2.5 mEq/L or 1.6-2.5 mg/dL
Term
Normal phosphate electrolyte level for an adult
Definition
1.8-2.6 mEq/L or 2.5-4.5 mg/dL
Term
Normal serum osmolality for an adult in electrolyte values
Definition
280-300 mOsm/kg water
Term
What veins are best when choosing an IV site?
Definition
distal veins of the arm
Term
What are some variables which dictate the IV site?
Definition
Client's age, how long the infusion is set for, the type of solution being run, and condition of veins.
Term
Common IV sites
Definition
Adult=Arm & hand
Infants=Scalp & Dorsal foot
Term
When is a central Venous catheter used?
Definition
When the pt./client will be receiving long-term IV therapy or parenteral feedings, or the medications being given are damaging to the veins. EX: Chemotherapy
Term
Where is a central Venous Catheter inserted? Is this a sterile procedure?
Definition
subclavian or Jugular Vein.....
YES, it is sterile!
Term
Can an RN do a central venous line?
Definition
NO!!
Term
Where is the distal tip of the Central Venous line/catheter while it is inserted?
Definition
it rests in the superior vena cava above the rt. atrium.
Term
Which veins are commonly used for IV?
Actual Names:
Definition
metacarpal, basilic, & cephalic
Term
can a central line be done at the bedside?
Definition
YES! For longer term access it will be done surgically.
Term
What are some complications which can arise from Central Venous Catheters?
Definition
Hemothorax or Pneumothorax, Cardiac perforation, thrombosis, and infection
Term
What gauge cannula should be used for intravenous therapy?
Definition
the smallest that will allow good flow & still accommodate therapy. Most hydration and intermittent therapies use 22-27 gauge.
Term
What gauge cannula will clients with fragile veins get with an IV? For ex: infants or neonates/
Definition
24-27 gauge
Term
What are some tips before inserting an IV:
Definition
a warm compress can be placed over the area, the client may take a hot shower or have a hot drink: This will act as a vasodilator and make the first attempt easier unless contraindicated.
Term
Why should a hand be the last choice for an IV?
Definition
the possibility of nerve injury, mainly in older adults who have thin skin.
Term
What should the RN do if the IV therapy is to last longer than a few days and is irritating to the client's veins?
Definition
consult with the IV NURSE or the provider to see if a central line or another type of catheter would be better for this client.
Term
How many attempts should you try when inserting an IV before soliciting help from others?
Definition
2
Term
What position should the patient be in for IV insertion/
Definition
Semi-fowler's or fowlers
Term
How may gravity help when inserting an IV?
Definition
by dangling the client's arm off the beside to encourage blood flow to that area.
Term
When should the RN avoid using a certain arm on a client when inserting an IV?
Definition
Hemiplegia( paralyzed on tat side) or dialysis access or the side of a Mastecomy
Term
What is a LACTATED RINGER'S Solution?
Definition
An alkalinizing solution that may be given to treat metabolic acidosis
Term
At what stage during the client's discharge should the RN remove the IV?
Definition
The IV should be removed last because it may need to be accessed if the pt's condition suddenly changes.
Term
List types of Isotonic Solutions;
Definition
0.9%(Normal saline)
Lactated Ringer's (balanced electrolyte solution)
5% dextrose in water(D5W)
Term
What type of isotonic solution remains in the vascular compartment causing the expansion of vascular volume?
Definition
Normal saline and lactated ringers
Term
Once the pt. has been given an isotonic solution what should the RN watch for?
Definition
the RN should assess the pt.for a bounding pulse and shortness of breath (signs of hypervolemia)
Term
What pt or client should not be given the isotonic solution D5W and why?
Definition
Anyone at risk for increased intracranial pressure(IICP) b/c D5W (Dextrose in water) can increase cerebral edema.
Term
List types of hypotonic solutions:
Definition
0.45% NaCl (half normal saline)
0.33% NaCl (one-third normal saline)
Term
Why are hypotonic solutions used?
Definition
To provide free water and treat cellular dehydration.
Term
What effect do hypotonic solutions have on the kidneys?
Definition
They promote the kidneys to eliminate waste.
Term
What pt/client should avoid hypotonic solutions?
Definition
Those At risk for (IICP) or third space fluid shift.
Term
How does the client appear clinically (neurologically) in metabolic Acidosis?
Definition
Drowsy, Headache, confused, and possible coma
(There is a decrease in HCO3-)
Term
How does the client appear clinically (neurologically) in Respiratory acidosis?
Definition
Drowsiness, Disorientation, Dizziness, Headache, and possible coma
(there is an increase in Pco2)
Term
How does respiratory acidosis effect the Cardiovascular system?
Definition
Low BP, Ventricular fibrillation, Warm flushed skin
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