General Nursing Flashcards
Normal Values of Potassium (K)
3.5-5.0 mEq/L
Normal Values of Sodium (Na)
135-145 mEq/L
Normal Values of Calcium (Ca)
8.5-10.5 mg/L
Normal Values of Chloride (Cl)
95-105 mEq/L
Normal Values of Magnesium (Mg)
1.5-2.5 mEq/L
Normal Values of Phosphate (Phos)
2.5-4.5 mg/L
Normal Values of Red Blood Cells (RBC)
4.5-5.0 million
Normal Values of White Blood Cells (WBC)
5k-10k
Normal Values of Platelets (Plt)
200k-400k
Normal Values of Hemoglobins (Hgb)
12-16g (female)
14-18g (male)
Normal Values of pH
7.35-7.45
Normal Values of Carbon Dioxide (CO2)
35-45 mEq/L
Normal Values of Bicarbonate (HCO3)
24-26 mEq/L
Normal Values of Partial Pressure of Oxygen (PaO2)
80-100%
Normal Values of Glucose
4-6 mmol/L (milimole per litre) or 70-110 mg/L
Normal Values of Hemoglobin A1C (HBA1C)
<7%
Normal Values of Specific Gravity
1.010-1.030
Normal Values of Blood Urea Nitrogen (BUN)
7-22 mg/dL
Normal Values of Creatinine
0.6-1.35 mg/dL
Normal Values of Lactate Dehydrogenase (LDH)
100-190 Units/L
Normal Values of Triglycerides
40-50 mg/dL
Normal Values of Total Cholesterol
130-200 mg/dL
Normal Values of Bilirubin
<1.9 mg/dL
Normal Values of Protein
6.2-8.1 g/dL
Normal Values Albumin
3.4-5.0 g/dL
Normal Values of Partial Thromboplastin Time (PTT)
20-36 seconds
If on heparin: 1.5-2.5x normal
Normal Values of Prothrombin Time (PT)
9-11 s
Normal Values International Normalized Ratio (INR)
0.9-1.8
2-3 on warfarin
Therapeutic Medication Level of Acetaminophen
10-30 mcg/mL
Therapeutic Medication Level of Carbamazepine
5-12 mcg/L
Therapeutic Medication Level of Digoxin
0.5-2 mg/mL
Therapeutic Medication Level of Gentamicin
5-10 mcg/mL
Therapeutic Medication Level of Lithium
0.5-1.2 mEq/L
Therapeutic Medication Level of Magnesium Sulfate
4-7 mg/dL
Therapeutic Medication Level of Phenobarbital
10-30 mcg/mL
Therapeutic Medication Level of Phenytoin
10-20 mcg/mL
Therapeutic Medication Level of Salicylate
100-250 mcg/L
Therapeutic Medication Level of Valproic Acid
50-100 mcg/mL
What is the Parkland Formula?
Parkland formula is used to determine the amount of fluid resuscitation needed in 24hrs after a burn.
4 mL x BSA (% of body burned) x kg
- given half of this in the first 8 hours
- remaining half given over 16 hours
What is the rule of 9s?
Used to determine percent of body burned for Parkland Formula
Head 9% Arms 18% (9% each) Back 18% Chest 18% Legs 36% (18% each) Genitalia 1%
What does Intravascular refer to?
fluid inside a blood vessel
What does Intracellular refer to?
fluid inside a cell (most bodily fluids are inside the cells)
What does extracellular refer to?
fluid outside the cells (includes interstitial fluid [fluid between cells], blood, bone, connective tissue, water)
What is an isotonic fluid?
0.9% NS, D5W, Lactated Ringers
No osmotic force=cells neither swell nor shrink
What is a hypotonic fluid
0.45% NS, 0.33% NS
More dilute solutions (more water then solute) = causes water to enter cells *watch for edema
what is a hypertonic fluid
3% NS, 5% NS, D10W, D5W with 1/2 NS, D5LR
More concentrated solution (more solute than water) = water is removed from cells
what is a colloid
Dextran, Albumin
Fluid moves from interstitial to intravascular compartment *given in severe hypovolemia
What are food that will increase Sodium?
bacon, butter, canned food, cheese, milk, condiments, salt, bread
Low Na = Low H2O (dry mucous membranes
High Na = High H2O
What foods will increase Potassium?
avocado, banana, carrots, fish, oranges, potatoes, pork/beef, spinach, tomato
Low K= ST dep., shallow/flat/inverted T wave, U wave
High: tall peaked T wave, flat P wave, wide QRS
Potassium is never given by IV push. Always diluted in a minibag
*never given greater than 10mEq/hr
What foods will increase calcium?
cheese milk, spinach, yogurt, tofu, sardines, greens
Low Ca: prolonged ST+QT
High Ca: shortened ST, wide T wave
Low Ca = positive Trousseau’s and Chvostek’s
What foods increase magnesium?
avocado, leafy greens, milk, wheat, peanut butter, pork/beef/chicken, potatoes, yogurt
Low: tall T wave, depressed ST
High: prolonged ST, wide QRS
Antidote for magnesium toxicity = calcium gluconate
what foods increase phosphorus?
fish, pumpkin, nuts, pork/beef/chicken, whole grain, dairy
decrease in phosphorus levels results in increase in calcium levels
Which electrolytes have inverse relationships?
Sodium/Potassium; high Na = low K
Calcium/Phosphorus; high Ca = low Phos
Magnesium/Phorphorus; low Mg = high Phos
Which electrolytes have similar relationships?
Calcium/Vit D; high Ca = high Vit D
Magnesium/Calcium; low Mg = low Ca
Magnesium/Potassium; low Mg= low K
Low pH + high CO2 equals what
respiratory acidosis
conditions causing airway obstruction or depression
Low pH + low HCO3 equals what
metabolic acidosis
insufficient insulin in pt w DM = DKA
severe diarrhea can cause metabolic acidosis
High ph + low CO2 equals what
respiratory alkalosis
-any condition causing overstimulation of the respiratory system (hyperventilation, hysteria, overventilation, etc.)
What is the Acid-Base formula
- Look at pH - is it low or too high?
- Too low = acidosis
- Too high = alkalosis - Look at CO2 and see if it’s an opposite relationship from the pH (if pH was low and CO2 was high, or if pH was high and CO2 was low)
- If YES, you have a respiratory imbalance
- If NO (pH and CO2 have the same relationship - either both are high or both are low) move to #3 - Look at HCO3 and see if it has the same relationship as pH (both pH + HCO3 are high or both low)
- If YES, you have a metabolic imbalance - COMPENSATED: pH will be within the normal range (body has corrected the problem)
- PARTIALLY COMPENSATED: pH is not normal. Look at the system that is supposed to fix the problem (if you have a respiratory problem, the metabolic system will try to compensate and vice versa) and see if it is abnormal, which means it is trying to compensate
- if YES, then you have PARTIAL compensation
- if NO, then you have UNCOMPENSATION
What happens to RR when in acidosis
RR will increase to attempt to exhale acids
What will happen to RR in alkalosis
RR will decrease to try and retain CO2 in order to neutralize + decrease the strength of excess bicarb
High pH + high HCO3 equals what
metabolic alkalosis
GI suctioning or severe vomiting can cause metabolic alkalosis
What organ controls carbonic acid levels
The lungs. CO2 will either be retained or blown off
What organ controls bicarb concentration?
The kidneys. They will retain or excrete bicarb. correcting acid/base balance by the kidneys takes hours to days
What is the nursing process?
Assessing - Collecting data
Diagnosing - Figuring out the problem
Planning - How to best manage the problem
Implementing - Putting the plan into action
Evaluating - Did the plan work?
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