• Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

Card Range To Study

through

image

Play button

image

Play button

image

Progress

1/186

Click to flip

Use LEFT and RIGHT arrow keys to navigate between flashcards;

Use UP and DOWN arrow keys to flip the card;

H to show hint;

A reads text to speech;

186 Cards in this Set

  • Front
  • Back
movement of fluid to maintain homeostasis , space between the cells in the tissues is called
interstitual space
fluid in cells (made of pottasium) is called
intracellular fluid
fluid outside of cells (plasma, i.f.) , these are NOT in cells
extracellular fluid
what gets rid of pottassium, secreted by adrenal cortex, stimulates renal (K) reabsorption.

Holds on to H20 and Sodium
aldosterone
what is secreted by the posterior pituatary gland, reabsorbs H20 in kidney and rids body of Pottasium
ADH antidiuretic hormone
the body wants to maintain what kind of state
Isotonic/Homeostatic
when you hold on to H20 and Sodium, what do you rid the body of

ex) ADH
Pottasium
a decrease in tissue perfusion and a decrease of fluid to the tissues is an example of
HYPOvolemia (ECF volume deficit)
EFC volume deficit is also known as
HYPOVOLEMIA
same concentration as normal body fluids is known as (saline)
isotonic
measurement of number of solutes per concentration is called
osmolarity
higher concentration (MORE solutes to number of fluids) is known as
hypertonic

(shrinks)
less concentration (LESS solutes to number of fluid) is known as
HYPO tonic
(bursts)
loss of H20 alone describes
dehydration
circulating volume increases and circulatory overload, including dehydration, this occurs with electrolyte imbalances
ECF volume excess , HYPERVOLEMIA
Major loss of all insensible fluids is through
PERSPIRATION
what is caused by insensible loss of fluids(H20) , draining wounds, diuretics, thirs space loss, decreased fluid intake
HYPOVOLEMIA
Supplemental O2 adds to
fluid loss, fever, heat stroke
a loss of blood sugar is what kind of loss?
Isotonic
thirst
dry mucous membranes
decreased turgor
are later signs of
ECF decrease , hypovolemia
hypovolemia comes with a _______ in urine output and weight loss
decrease
signs and symtoms of HYPOVOLEMIA are
deceraed urine output
weight loss
postural orthostatic hypotension
increase pulse and RR
decreae cap refill
neckvein distention
you must treat the ___________ w/ hypovolemia
underlying cause
with hypovolemia, explain what you do to loss of h20 and electrolytes and blood
- use an ISOTONIC IV solution
to replace h20 and electrolytes

repalce blood if blood loss
excessive IV fluids can cause heart failure or renal failure, this is known as
hypervolemia (Excess fluid volume)
drinking too much is known as
polydipsia
excessive steroids, corticosteroids is known as
cushings syndrome
inappropriate ADH secretion at wrong time is known as
SIADH
clinical manifestations of hypervolemia include distended abdomin, liverenlargement, seizure coma, increase BP, NVD, and what ....
fluid in lungs backup causing dyspnea and oprhopnea cough
name one way to treat underlying cause of hypervolemia
remove f/e with diuretics, fluid restriction, NA restriction or finally with needle (paracentesis)
if intake and output is INCREASED, urine is
more concentrated, you want urine to be concentrated
if intake and output is DECREASED urine is
more dilute
pulse rate, heart sound, bp changes , your heart is working too hard, flatteened neck veins, these are examples of
cardiovascultar changes
(reflects sympathetic nervous system compensation)
pulmonary congestion (fluid in alveoli) or decreased tissue perfusion, change in respiratory rate, SOB, dyspnea, cough, are exammples of what type of changes
respiratory
THE EASIEST AND MOST ACCURATE WAY TO JUDGE FLUID LOSS IS WITH
DAILY WEIGHTS
asess skin turgor and mobility, temp, mositure, edema, mucuous membrane and do what for implementation to patient?
change position
elevate edemous extremties
use lotions and oils
1 kg = 2.2 lb =
1 LITER FLUID!
PRIMARY determinant of ECF osmolarity
SODIUM NA+
SODIUM NORMAL LEVEL IS
135-145
sodium is important for the body for
GENERATION AND TRANSMISSION OF NERVE IMPULSES AND

REGUALTE ACID=BASE BALANCE
WHAT IS MOST SENSITIVE TO CHANGES IN NA+ LEVELS!?
THE BRAIN
sodium moves with what?
water
a change in K pottasium level affects what?
the HEART
the body gets most of it's NA+ from what?
FOOD (GI absortption)
how does the body lose NA+
feces, urine, sweat
what regulates the NA+ Balance?
KIDNEYS
Name examples of kidney regulation of NA+ balance
ADH
aldosterone
adh and aldosterone help lose sodium and where does sodium get excreted
kidneys
what reflects the ratio of NA+ to H20?
serum NA+ level
if isotonic imbalance NA + Level remains what?
NORMAL, an isotonic loss
where does NA+ come from primarily
food such as processed food, canned goods
what causes nerve impulses to move?
sodium switching
HYPERNATREMIA affects what?
THE BRAIN
a GAIN of na+ or a loss of H20 is called
HYPERNATERMIA
shifts from cells to ECF cuasing
cell shrinkage (hyper)
the body picks up increasing NA+ to maintain
homeostasis
H20 to ECF helps maintain what kind of state
isontonic
causes of hypernatermia are impaired thirst, dysphagia, watery diareah, polyuria
excessive hypertonic solutions IV, edxcessive PO intake of NA+m, disease
what kind of symptoms (restlessness, agitation, seizures, coma) would you see with HYPERNATREMIA?
CNS symptoms, the BRAIN is affected
you must treat underlying cause of hypernatremia, and use hypotomnic IV solutions slow or fast?
slow, NA levels must be reduced SLOWLY
A DECREASED ADH will
RETAIN NA+ AND RID H20 (hypernatremia)
gained too much H20 or too little NA+ is known as
HYPONATERMIA
IN hyponatermia , H20 shifts into cells causing
cell swelling and bursts
a condition commonly found in the hospital population, especially in patients being hospitalized for central nervous system (CNS) injury. This is a syndrome characterized by excessive release of antidiuretic hormone (ADH or vasopressin) from the posterior pituitary gland or another source. The result is hyponatremia, and sometimes fluid overload. It should be noted that vasopressin has other important functions, addressed in the appropriate articles.
SIADH
syndrome of inappropriate ADH secretion
SIADH result is
hyponatermia
hyponatremia occurs when there is a _______ of na+ containing fluids, example is a wound.
LOSS
h20 Excess / hypotonic IV fluids causes
hyponatremia
too little NA+ or too muc hH20 in ECF causes
hyponatremia
a Sodium level above 145(157) is
hypernatremia
a soidunm level below 134 (129) is known as
hyponatremia
hyponatermia retains H20 causing
weight gain
how do you care for a patient with HYPONATREMIA?
treat underlying cause
HYPERTONIC IV - SLOWLYYYY
replace PO fluids with NA+
correct slow to prevent NEURO DAMAGE
To fix HYPERNATREMIA you give what kind of IV SLOWLY
HYPOTONIC IV
to fix HYPONATERMIA you give what kind of IV slowly
HYPERTONIC IV
Primary determiant of ICF osmolarity is known as
K POTASSIUM (IN THE CELLS)
Pottassium is located
IN THE CELLS
Cardiac Cells are very sensitive to changes in
K+ LEVELS
K levels affect the
HEART
The body gets most it's K+ from
Food such as fruits and vegetables
BANANAS
ORANGES
GREEN LEAFY
VEGS
Potassium is important to the body for
cell funciton
generation of nerve impulses
cell growth
The body loses K in
urine, stool, sweat, medication such as diuretics
What excrete extra K -
kidneys
what kind of relationship occurs between K and NA
INVERSE relationship
Serfum K+ levels refelect the movement of K+ .........
OUT OF CELLS INTO ECF
Trauma to cells (medications) is known as
acidosis
cell building, stress, insulin is known as
ALKALOSIS
Kidneys hold NA+ and excrete
POTASSIUM K
what are some things that increase potassium levels
surgery, accidents, tissue cell damage
Potassium normal level is
3.5-5
a gain of K+ movement of fluid from ICF into ECF.

amn EXCESS K intake
hyperkalemia
you must look at what level to asess KIDNEY problem
BUN/CREATINE level
hydrogen moves INTO cell and potassium moves out causing hyperkalemia is known as
ACIDOSIS
a K + level greater than 5 = HYPERKALEMIA and sings are
EKG CHANGE, Irregular pulse, cardiac arrest, LOWER EXTREMEITY WEAKNESS
A sure sign of HYPERKALEMIA or excess K+ is
LOWER EXTREMITY WEAKNESS
RN interevention for hyperkalemia is to
decrease K intake, increase elimiation of K+ with diuretics such as KAYEXALATE, dialysis
What causes HYPERKALEMIA?
METABOLIC ACIDOSIS
THE MOST COMMON ELECTROLYTE IMBALANCE IN THE HOSPITAL IS KNOWN AS
HYPOKALEMIA
caused by a lack of intake, lack of potassium, shifts into cells
hypokalemia
K must be replentished in the body, a decrease in cellular exciteability causes changes in the
HEART
weakness, fatigue, cramps, decreased pulse ox, vital changes, orthostatic hypotension, are clinical manifestiations of
Hypokalemia
to care for hypkalemia , you must replace what
K+ PO or IV and SLOWLY
A PH level greater that 7.45 is
ALKALOSIS
A PH level less than 7.35 is
ACIDOSIS
kidnesy excrete what and retain what
kidneys EXCRETE HYDROGEN IONS
and RETAIN BICARBONATE.
Lungs exhale what?
CO2
An increase of HCO3 (Bicarbonate) =
HIGH ALKALOSIS
an increase of Hydrogen Ions =
LOW ACIDOSIS
ARTERIAL BLOOD GAS PROBLEMS
LOOK AT PH TO FIND ACID./ALK
LOOK AT PACO2 AND HC03
to figure out respiratory or metabolic
PH normal
7.35-7.45 ACID/ALK
PAC02 normal
35-45 RESPIRATORY
PAC03 Normal
22-26 METABOLIC
Respiratory is the lungs and metabolic is the
kidneys
excessive release of antidiuretic hormone (ADH or vasopressin) from the posterior pituitary gland or another source. The result is hyponatremia, and sometimes fluid overload.
SIADH
failure of respiratory system to remove CO2 from body fluids as fast as it is produced causing excess CARBONIC ACID (pac03) leads to
RESPIRATORY ACIDOSIS
RESPIRATORY ACIDOSIS =
PACO2 > 45
PH < 7.35
RESPIRATORY acidosis is caused by
HYPOVENTILATION
EX) copd/ meds that depress resp.
too much o2 decreases respiratory drive because it decreases
stimuls to breathe and let off CO2
a patient with cyanosis and rapid shallow respirations, disorientation and blurred vision and weakness is experiencing
RESPIRATORY ACIDOSIS
What compensates for respiratory acidosis?
KIDNEYS reabsorb HC03 AND EXCRETE HYDROGEN IONS into the urine

this takes HOURS TO DAYS
Another way to compensate for respiratory acidosis is to
hyperventialtion to blow off CO2
a loss of CO2 from lungs faster than produced by cells aka CARBONIC ACID DEFICIT is known as
RESPIRATORY ALKALOSIS
(excessive CO2 exhalation)
REspiratory Alkolosis is caused by
HYPERVENTILATION
respiratory alkolosis can also be triggered byt
high altitude, anxiety, fever, excercise, stimulation of respiratory center, brain injury, septicemia
a pt complains of ligheadednes, parasthesias, altered consciousness, cramps, spasms, these are signs of
RESPIRATORY ALKOLOSIS
RESPIRATORY ALKALOSIS =
PACO2 < 35
PH > 7.45
to compensate for RESP ALKALOSIS
kidneys reabsorb H+ and excrete HC03 (Bicarbonate)

takes hours to days
respiratory alkalosis patients can counteract it with
CO2 rebreather
antianxiety agents
Abnormal accumulation of acids or loss of bases from the body known as base bicarbonate deficit is called
METABOLIC ACIDOSIS
abnormal accumulation of acids or loss of bases from the body (base bicarbonate deficit)
METABOLIC ACIDOSIS
METABOLIC ACIDOSIS =
PH < 7.35
HCO3 > 22
metabolic acidosis is caused by
DM acidosis, lactic acidosis, starvation, renal failure, breakdown of muscle
a pt with deep rapid respirations (kussmaul resp) is a clinical manifestation of
metabolic acidosis
to compensate for metabolic acidosis ,patient is given
IV bicarbonate, lungs try to blow off excess CO2, renal buffering
loss of hydrogen ions or too much bicarobate is called
METABOLIC ALKALOSIS
METABOLIC ALKALOSIS =
ph > 7.45
hc03 bicarb > 26
DURING metabolic alkalosis, H and K compete in the
kidneys
Kidneys choose H + and remove K + , this is called
hypokalemia
meds that increase excretion of H and K , fluid loss from stomach, cushings disease, excessive adminstartion of alkali lead to
metabolic alkalosis
pt ocmplains of apathy, mental confusion, dizziness, weakness, shallow respirations, spastic muslces and cramping shows signs of
metabolic alkalosis
RESPIRATIONS SLOW AND SHALLOW WITH PERIODS OF APNEAAAAAAAAAA occur with
METABOLIC ALKALOSIS
To compenssate for metabolic alkalosis, the lungs
retain CO2 by decreasing respirations (slow hypoventilation)
what can you use to incrase HC03 (bicarb) excretion?
Diuretics (diamox)
who get dehyrdrated quicker and are at greater risk for kidney problems due to excess medication
elderly
major cause of elderly problem are
diuretics
most accuarte measurement of fluid loss is
weight
what value shows blood concentration level of red blood cells
hematocrit HCT
what value if increased shows a definite kidney problem
CREATINine
if hematocrit is off there is a decrease of
fluid
patient should learn to
report signs and symptomsof imbalances such as weight gain or loss, edema, urine production changes, hygiene oral
primary - for mild to moderate dehydration is
oral replacement
if patient has mild or chronic FVE Fluid volume excess or hypervolemia, you need to
restrict fluids and sodium
if given a diuretic, you must monitor
Electrolytes
if you have a kidney problem you cannot give a
diuretic
potassium given orally, tasetes bad , ggive with food because of GI upset , this is for
electroltye replacement
increase excretion of potassium, given rectally
kayexalate
MOST COMMON OCCURING ELECROTYEPROBLEM IN HOSPITAL
HYPOKALEMIA
NEVER GIVE POTASSIUM IV PUSH
OR IM OR SUBQ
T/F
TRUE
IF potasium mixed in IV you must give with a
infusion pump
patients shoudl learn to report
weight gain or loss, edema, urine proudction changes.
primary cure for dehydration is
OREAL REPLACEMENT
if fluid volume excess, you must
restrict fluids and sodium, no caffeine or salt.
must monitor what if you are taking diuretics, cant use with kidney problems
ELECTROLYTE MONITORING
most useful if renal failure is not cause of problem, potential to cause dehyrdation and elec imbaalnce
diuretics
A nurse understands isotonic solutions when the nurse states:
It is helpful in the treatment of hypotension from the loss of fluid.
Why is old blood and injuries like burns important to K monitoring?
K is released from damaged blood cells.
Nurse Lala is assessing her pt's IV site. She notices that is red and warm to the touch. What can Lala take away from this?
phlebitis
Which condition needs extra assessment when considering hypertonic solutions?
heart
Nick has had surgery and is having post op edema. Which solution would you expect, as the nurse, to see being used for Nick?
hypertonic
Oral K is not usually a problem unless a pt has this problem?
kidney/renal failure
Concentrations of electrolytes are similar in ICF and ECF.
false
A nurse understand hypokalermia when the nurse states:
hypokalemia can decrease BP
In pt teaching about hypokalemia, what is the most important education to be done?
Bowel management care
Hypernatremia can be caused by:
high fever, sweating
A nurse understand hypertonic solutions when the nurse states:
It has a higher osmolality than plasma , pushes fluid into the cells
k is important for
muscle function
A nurse understand K and IV infusion when the nurse states:
K never be infused into a patient
Why is insulin good for K regulation?
keeps K from being pulled out of cells
Mary Anne is a 86 year old woman. She has olguria and a swollen tongue. She does ask for water. She is confused and has muscle weakness. Her Na serum came back at 165. What could the problem be?
she has hypernatremia
A nurse understand the use of hypertonic solutions to be used in surgery when the nurse states:
It is used when there is substantial loss of blood and BP needs to be raised.
It replaces or maintains vascular fluid volume. (correct answer)

C. It is helpful in the treatment of hypotension from the loss of fluid. (correct answer)
isotonic solutions
Nancy is having a low output of urine. The doctor orders an hypotonic solution. Should you question the order?
yes
patienst with memory loss and concentration have
hyperkalemia
regulated by BP and kidney perfusion (correct answer)
B. regulated by hormones such as aldosterone and ADH (your answer)
C. reflects the blood osmolality (your answer)
serum NA
How often does a nurse want to assess a pt on IV fluids?
q 2 hours
A patient is hyperkalemic, which foods are best for this patient?
beans and chicken
Which condition needs extra assessment when considering hypertonic solutions?
heart