Test 1 Flashcards
ABGs
acidic alkaline
pH = 7.35 - 7.45 < 7.35 > 7.45
PCO2 = 35 - 45 (resp) > 45 < 35
HCO3 = 23-27 (meta) < 23 > 27
pH matches CO2 = resp
pH matches CO3 = meta
Celcius -> Fahrenheit
9/5 (C) + 32
Vitals
- BP
- HR
- RR
- O2
BP: Adults = 120/80 Children = 80-120/45-70 HR: 100 RR: 12-20 O2: 95-100
Metabolic acidosis - Causes
increased acid production (hyper metabolism)
decreased acid elimination (renal failure)
decreased bicarb production (dehydration, liver failure)
increased bicarb elimination (diarrhea, fistulas)
Metabolic alkalosis - Causes
excess bicarbs (antacids, admin of sodium bicarb), diuretics most common: vomiting and nasogastric suctioning
Metabolic alkalosis S/S
confusion tachycardia from low K+ compensatory hypoventilation dizzy, increased irritability n/v/d increased anx, seizures tremors, muscle cramps, tingling of fingers/toes (low serum Ca++)
Metabolic acidosis - S/S
headache low BP hyperkalemia muscle twitching n/v warm, flushed, skin low muscle tone, low reflexes kussmaul respirations (compensatory hyperventilation)
Respiratory acidosis - Causes
respiratory depression (anesthesia, overdose) airway obstruction pneumonia, COPD, ARDS, PE
Respiratory acidosis - S/S
hyperventilation low BP rapid, shallow resp headache hyperkalemia cyanotic dysrhythmias drowsiness, dizziness, disorientation muscle weakness
Respiratory alkalosis - Causes
hyperventilation (anx, PE, fear)
mechanical ventilation
Respiratory alkalosis - S/S
hyperventilation tachy low or normal BP hypokalemia numbness/tingling of extremities seizures increase anx, irritability
Ca - Calcium
9 - 11
Na - Sodium
135 - 145
K - Potassium
3.5 - 5
Glucose
70 - 110
WBC
4500 - 10000
RBC
M: 4.7 - 6.1
W: 4.2 - 5.4
PO4 - Phosphate
2.4 - 4.4
K rich foods
avocados bananas milk oranges potatoes tomatoes yogurt spinach
Na rich foods
butter canned items fast foods chips mac n cheese frozen dinners cured meats pickles
Mg rich foods
cauliflower
beans
peanut butter
avocado
Ca rich foods
greens spinach refried beans cream soups broccoli tofu oysters
low sodium foods
baked/broiled chicken egg yolk fresh vegetables, fruit honey, jelly potatoes sherbet
Hyperkalemia
M - muscle twitching, weakness U - decreased output R - irregular rhythm (brady) D - diarrhea E - ECG changes - tall peaked T wave R - areflexia (flaccid)
Give: CaGl IV 10 U reg insulin to increase permeability D50 HCO3 (bicarb) loop diuretic kayexelate
Hypokalemia
A - alkalosis
S - shallow respirations
I - irritability
C - confusion
W - weakness
A - arrhythmias (tacky and/or brady)
L - lethargy
T - thready pulse
low intestinal motility
Give: K+ pill HCTZ - Ca sparing Spironolactone - K+ sparing diuretic Lasix (furosemide) - loop
Hypocalcemia
muscle cramps lethargy high BP seizure tetany - muscle spasms
Give:
hypotonic solution over 1 hr
Hypercalcemia
dehydration confusion renal stones severe thirst constipation polyuria - excessive pee shortening of QT interval high BP
Give:
hypertonic solution
furosemide IV over 2 min