Flashcards in Exam 3- Acid Base Balance Deck (17):
What is going on during the Acid Base balance?
CO2+H20--H2CO3 (bicarbonic acid)--H+ + HCO3- (bicarbonate)
LUNGS and KIDNEYS works together to maintain homeostasis
Kidneys- metabolic (slow)
What 3 arterial blood gas values maintain homeostasis?
1. pH: 7.35-7.45
2. PaC02: 35-45 (respiratory)
3. HC03-: 22-26 (metabolic)
Where are ABG's located?
Lower than veins therefore analyze ABG's
When should you check ABGs every hour?
Pt who overdosed on Aspirin
Interpretation of ABG's: ROME
RO- Respiratory Opposite
Increased pH, Decreased PaCo2- Respiratory Alkalosis
Decreased pH, Increased PaCo2- Respiratory Acidosis
ME- Metabolic Equal
Increased pH, Increased HCO3-= Metabolic Alkalosis
Decreased pH, Decreased HCO3-= Metabolic Acidosis
What can cause compensated respiratory acidosis?
Long standing respiratory insufficiency e.g- COPD chronic obstructive pulmonary disease
What can cause respiratory acidosis?
HYPOVENTILATION- CO2 builds up
RESPIRATORY FAILURE: ASTHMA, EMPHESEMIA therefore pt TRAPS TOO MUCH CO2 in lungs and C02 expands causing resp. acidosis. BRONCHITIS
Nursing interventions for pt experiencing resp acidosis to help start breathing?
percussion test, chest physiotherapy
ASSIST PT WITH THESE^
What causes Respiratory Alkalosis?
HYPERVENTILATION: exhaling too much C02 (getting rid of) because breathing too fast.
Caused by: TRAUMA pt in shock or ventillator setting is inappropriate for pt in ICU
Nursing interventions for pt in respiratory alkalosis?
Have pt breathe in PAPER BAG so that they can breathe in the CO2.
Pt breathe in a MASK
REASSURANCE: person in car accident, child or someone injured therefore parent's breathing becomes RAPID..bring parent back to HOMEOSTASIS..breathe bitch breathe in a bag!
What causes metabolic acidosis?
What is the most common metabolic acidosis?
DIABETIC KETOACIDOSIS- breakdown of fat in body, that process causes release of ketones (acidic, high) in diabetic pt. therefore ketones released in blood, which are highly acidic= metabolic acidosis!
Nursing interventions for metabolic acidosis?
Take seizure percautions
What causes Metabolic Alkalosis?
1. ANTACIDS- excess Tums, alkaseltzer or antacid use excessively
2. GASTRIC LOSS- e.g NG tube, loss of stomach fluid, HCL acid loss in stomach therefore shift to become alkalodic.
Effects: VOMITING, POISONING, OVERDOSE