Exam 2 Flashcards
Hypertonic solution & examples
Solute outside, water inside (water moves out)
Cell shrinks
5% saline, 3% saline, D5, D6
Isotonic solution & examples
Equal solute/water
0.9% saline, LR
Hypotonic solution & examples
Solute inside, water outside
Cell swells
0.45% saline, 0.225% NS
S/S of dehydration
Tachycardia
Hypotension
Weak pulses
Hypernatremia
Poor skin turgor
Dry mucous membranes
Low urine output
Concentrated urine/serum
Interventions for dehydration
Offer minimum 2-4oz/hr
Sit on side of bed for 1 min before getting up
S/S of fluid overload
HTN
Bounding pulses
Low sodium
Polyuria
Dilute urine/serum
Crackles
JVD
S/S of CHF
Dyspnea at rest
JVD
AMS hypoxia
Rapid/shallow respirations
Pitting edema
Weight gain
S/S of hyponatremia
Seizure-coma-death
Anorexia/ N/V
Tendon reflex decreased
Limp muscle (weakness)
Orthostatic hypotension
Stomach cramping
Causes of hyponatremia
Diuretics, SIADH, low aldosterone, GI wound drainage, FVO, decreased intake of Na
S/S of hypernatremia
Flushed skin
Restlessness
Increased fluid retention & BP
Edema
Decreased urine output
Dry mouth
S/S of hyperkalemia
Muscle weakness
Urine output little or none
Respiratory failure
Decreased cardiac contractility (weak pulse)
Early muscle twitches/cramps
Rhythm changes
S/S if hypokalemia
Lethargic
Low, shallow respirations
Lethal cardiac dysrhythmias
Lots of urine
Leg cramps
Hyporeflexia
Causes of hypokalemia
Drugs
Inadequate consumption of K
Too much water intake
Cushings syndrome
Heavy fluid loss
Causes of hyperkalemia
Adrenal insufficiency
Addisons disease
Renal failure
Excessive potassium intake
Drugs (NSAIDS, ACE inhibitors)
S/S if high Mg
Weakness, drowsiness
Respiratory depression
Bradycardia
Causes of high magnesium
Loss tendon reflex syndrome
Treatment of high Mg
Calcium gluconate
S/S of low Mg
Torsades de pointe
Respiratory arrest
Nystagmus
Causes of low Mg
Diuretics
Alcohol
Burns
S/S of low calcium
Positive chvostecks sign
Hyperactive reflexes
Carpal/pedal spasms
Tetany
Seizures
Laryngospasms
Dysrhythmias
Trousseaus sign
Causes of low calcium
Low intake of calcium
Hypoparathyroidism
Causes of high calcium
Hyperparathyroidism
Low Ca output from use of thiazide diuretics
S/S of high calcium
Confusion
Cardiac arrest if seizure
Painful bones
Renal stones
Abd groans
Sitting on throne
Normal blood ph
7.35-7.45
Normal paCO2
35-45
Normal HCO3
22-26
Causes of respiratory acidosis
Hypoventilation
Inadequate chest expansion
Airway obstruction
S/S of respiratory acidosis
Respiratory depression
Weak decreased pulses
Tx of respiratory acidosis
Ambu bag, prepare for intubation
Causes of Respiratory alkalosis
Hyperventilation
Pulmonary embolism
Pneumonia
ARDS (mech ventilation)
Tx of respiratory alkalosis
Breathe in paper bag if from anxiety
Signs of metabolic acidosis
Kussmaul respirations (deep and rapid)
Causes of metabolic acidosis
Diarrhea
Alcohol intoxication
Dehydration
Renal failure
DKA
Sepsis
Burns
Tx of metabolic acidosis
Administer IV bicarbonate
Causes of metabolic alkalosis
Vomitting
Blood transfusions
Overhydration
Antacid abuse
S/S of metabolic alkalosis
Muscle weakness
Twitching
Cramps
Tx of metabolic alkalosis
Stop antacids
Stop suctioning
Stop vomitting
3 main symptoms of diabetes
Polyuria
Polydipsia (thirsty)
Polyphagia (eating a lot)
Type 1 diabetes
Often younger/Caucasian populations
Produces no insulin at all
Type 2 diabetes often in who
Older adults and minorities
Other name for Hgb A1c
Glycosylated hemoglobin
Postprandial BS
Blood sugar taken after meals
Should be less that 180
Diet for diabetics
No missed meals
Don’t decrease intake during exercise or consume alcohol
Take metformin with meals
How exercise affects diabetics
Lowers sugar by increasing carbohydrate metabolism
Teaching for diabetics and exercise
Check BS while exercising- can lead to hypoglycemia
Don’t exercise around time insulin peaks (regular- 2-4hrs; NPH- 4-10hrs)
Take snack before exercising
Don’t exercise if BS <100
Sick day rules for diabetics
Continue taking insulin and diabetic pills as usual (never stop taking)
Drink extra calorie free liquids
Weigh everyday (losing wt sign of high BS)
Self monitor BS q2-3hrs
Check temp morning and night
Foot care for diabetics
Inspect feet daily
Never wash with hot water
Neuropathy- low sensation, high risk for injury
Moisturize but NOT in between toes
Socks to bed, no heating pad or hot water bottles
Hard sole shoes- no open toed or flip flops
Insulin administration
Abdomen- 2 in from umbilicus
Pens good in fridge for 3 weeks
Roll NPH in hand before injection
Store pens upright to prevent clogging
Steps of drawing up insulin
Check expiration date
Roll NPH between hands
Inject air in NPH, inject air in regular, draw up regular and then draw up NPH
Somogyi effect
Early morning HYPERglycemia due to rebound from late night HYPOglycemia
Early AM levels less than 50-60
7AM levels greater than 180
How to prevent somogyi effect
HS snack or adjusting insulin dosage
Dawn phenomenon
Everyone has it- growth hormone released at night
Lantas (ultra lente) instead of NPH eliminates this phenomenon
Cystitis
Infection and inflammation of bladder
Usually caused by UTI
S/S of cystitis
Traces of blood, dark, cloudy or strong smelling urine
Pain just above pubic bone, lower back or abdomen
Burning, frequency and urgency of urination
Interventions for cystitis
Empty bladder completely
Wipe from front to back
2-3 L daily
No long baths
Urinary incontinence
Decrease in muscle tone= irritation and urgency
Stress incontinence
Urine leaks when laughing, coughing, lifting heavy objects, etc
Overactive bladder
Urge incontinence
Caused by urinary muscle spasms
Usually from multiple pregnancies, overweight, genetic weaknesses
Teaching for urinary incontinence
Avoid caffeine
Bladder training- void q2hrs
Kegel exercises 10x/day
Renal calculi (Nephrolithiasis)
Kidney stones
Higher risk in diabetics, fluid volume deficit or family hx
Severe flank pain
Urolithiasis
Stones in urinary tract
Tx for nephrolithiasis
Pass with fluids (4L/day)
Pain managed with NSAIDS (ketorolac, morphine IV, antispasmodic agent oxybutynin/ditropan)
Strain all urine
Monitor I&Os
Nephrolithiasis diet
Don’t eat diet high in oxalates
If stone contains Uric acid- low purine diet
Diet high in oxalates
Beer
Chocolate
Nuts
Berries
Spinach
Grains
Bladder cancer risk factor
Smoking MAJOR risk
S/S of bladder cancer
Blood in urine
Pain with urination
Dx of bladder cancer
UA
Cytology
Cystoscopy
Biopsy
Pyelonephritis
Kidney infection caused by bacteria (usually e. Coli)
Caused by females with poor hygiene or Foley catheters
Reduce nylon underwear or stockings
S/s of pyelonephritis
Headache
Abd + flank pain
CVA tenderness and pain radiating down ureter due to inflammation
Nocturia
Fever/chills
N/V
Tachycardia
Tachypnea
Malaise/fatigue
Glomerulonephritis
Inflammation of glomeruli (capillaries in kidneys)
Unable to handle waste products (protein, Na, K, Phosphorus)
Usually triggered by other infection
S/S of glomerulonephritis
Hematuria
Proteinuria
N/V
Anorexia
Tx of glomerulonephritis
Abts
Small freq meals
Avoid foods high in protein, Na and K
Monitor kidney function
Monitor for HTN and FVO
Polycystic kidney disease
Genetic disorder- gets progressively worse until transplant
Growths can be up to 30 lbs
Leads to end-stage kidney disease
S/S of Polycystic kidney disease
Flank pain
Bloody/cloudy urine
Enlarged abdomen
Adverse effects of polycystic kidney disease
Severe headache = sign of HTN crisis
Polycystic kidney disease interventions/teaching
Control HTN - low Na diet
Daily weights
Ace inhibitors can cause hyperkalemia
Avoid NSAIDS
treat pain and avoid constipation
Drink fluids, high fiber diet and walk
Acute kidney injury
Sudden episode of kidney failure, occurs within hours or few days
Causes buildup of fluid, electrolytes, and waste products (K, Mg, Na, Ca)
Most at risk for acute kidney injury
Diabetics
NSAID abuse
CT contrast dye
Metformin
S/S of acute kidney disease
Oliguria/anuria (little or no urine)
Swelling in legs, ankles and around eyes
Fatigue/tiredness
SOB
Confusion-seizure-coma
Chest pain/pressure
Nephrosclerosis
Progressive renal impairment caused by poorly controlled HTN
S/S of nephrosclerosis
Anorexia
N/V
Pruritis
Somnolence/confusion
Wt loss
Unpleasant taste in mouth
Atherosclerotic renal artery stenosis
Narrowing of arteries
Arteriosclerosis
Hardening of arteries
At risk for renal vascular disease
Diabetics
CAD
Aortoiliac occlusive disease
Risk factors for renal vascular disease
Older age
HTN
High cholesterol
Diabetics
Smoking
Heavy alcohol/drug abuse
BPH
Non-malignant
Common in older men and African Americans
S/S of BPH
Groin/Abd pain
testicular/scrotal issues
Infections
Nocturia
Frequency/urgency
Post-void dribbling
Straining
Medication Tx for BPH
5-alpha reductase inhibitors (finasteride, dutasteride) -shrinks prostate
Alpha-blocking agents (tamsulosin, alfuzosin) - decreases pressure in urethra
Watch for orthostatic hypotension
TURP after teaching
Continuous bladder irrigation (urine goal- pink-tinged, REPORT burgundy)
REPORT confusion or bradycardia
Teach catheter care
Avoid baths
Post op dribbling or spasms expected
Nephrostomy tube
Inserted surgically into kidneys when they’re backed up with urine
Teaching for nephrostomy tube
Fluids 2L/day MINIMUM
Inspect often for kinks in tube
Measure for drainage, position and dressing intact
Report decreased urine output (clog/dehydration)- assess abd for distention or pain
Dressing changed weekly-STERILE
Place on side with tube up for dressing change
Testicular cancer
Common in ages 15-34
High recovery and curable even at end stage
Typical sign- lump or swelling in testicle
Tx of testicular cancer
Surgery (orchiectomy)
Radiation
Chemo
Use sperm bank before treatment
Causes of erectile function
Medications
Poor blood flow
Drink too much alcohol
Too tired
Tx of erectile dysfunction
PDE5 inhibitors - sildenafil (viagra, -afil) causes blood vessels to dilate, improving blood flow
Teaching for -afil drugs
Don’t take it on nitrate drug for CP or heart problems
Can cause sudden vision loss
Take 30-60 min before intercourse
Allow 24 hrs between each tablet
minimize alcohol
Facial flushing possible
Report erection that lasts longer than 4 hrs (priapism) or painful
Calcium level
9-10.5
Magnesium level
1.5-2.5
Potassium level
3.5-5
Sodium level
135-145