Essentials Exam 3 Flashcards
Disinfection
Removal of pathogenic microorganisms
Sterilization
Process used to destroy all microorganisms,
including their spores
7 Principles of Surgical Asepsis
- Sterile can only touch sterile
- Only sterile objects in sterile field
- Non-Sterile: Object falling below waist, Unattended objects, Turning back on field, Do NOT cross arm over sterile field!
- Prolonged exposure to air contaminates field
- Moisture onto a sterile field causes field to become contaminated.
- Fluid flow in the direction of gravity
- 1” border around field contaminated
causes of urinary retention
Acute: Sudden onset
-Intervention needed ASAP
Post surgical: Anesthesia /medications
Chronic:
- Progressive blockage
- Prostate
- Stricture
Medications
Neural pathway interruption
Stroke
Multiple sclerosis
Trauma/spinal injury
four types of urinary incontenence
overflow stress urge functional
overflow incontinence
overdistended bladder/ urinary retention
stress incontinence
Small leakage due to incompetent
urethral sphincter.
laughing, coughing, etc
urge incontinence
Strong sense of urgency
Frequency, nocturia, unable to
hold urine once the urge begins
STRENGTHEN PELVIC FLOOR
functional incontinence
Causes outside the urinary tract
Mobility, cognitive impairment
(dementia), environmental
barriers
Kegel exercises
- Women
- Urinary Incontinence
- Pain during intercourse
- Fecal incontinence
what’s a concerning urinary output?
Hourly output of less than 30
mL for more than 2 hours is
cause for concern
characteristics of urine
color, odor, clarity
Urinalysis
- Appearance, concentration and content of
urine - Glucose, protein, ketones, nitrites,
leukocytes, pH
Specific gravity
- Concentration (density) as compared to water
- 1.005(less concentrated)-1.030(more
concentrated)
when is a Culture and Sensitivity test used
- Urinary tract infection
another name for the specimen collection cup
hat
delegating urine cup
- Clean void/midstream specimens can be delegated
how soon after collection does a urine sample need to be sent to the lab
within 2 hours
when to refrigerate urine specimen
when completing a culture and sensitivity test for UTI
how to collect a urine specimen
clean voided, midstream
non-invasive bladder exams
KUB, CT, MRI
* Bladder scan
* Intravenous pyelogram (x-ray)
* Urodynamic testing (Uroflowmetry)
invasive bladder exams
Cystoscopy (scope)
Arteriography (xray with dye inserted)
oxybutynin
- Increase bladder contraction, increase
capacity
Intermittent Catheterization
(one time for bladder emptying)
* Relieving discomfort of bladder
distention, providing decompression
* Obtaining sterile urine specimen when
clean-catch specimen is unobtainable
* Assessing residual urine after urination
* Managing patients with spinal cord
injuries, neuromuscular degeneration, or
incompetent bladders long term
Cholinergic drugs
increase bladder
contraction and improve emptying
Short-Term Indwelling Catheterization
(2 weeks or less)
* Obstruction to urine outflow (e.g., prostate
enlargement)
* Surgical repair of bladder, urethra, and
surrounding structures
* Prevention of urethral obstruction from blood clots
after genitourinary surgery
* Measurement of urinary output in critically ill
patients
* Continuous or intermittent bladder irrigations
Long-Term Indwelling Catheterization
(more than a month)
* Severe urinary retention with recurrent
episodes of UTI
* Skin rashes, ulcers, or wounds irritated by
contact with urine
* Terminal illness
* Comfort measures
* When bed linen changes are painful for
patient
indwelling foley catheter
balloon, urine flows down
Indwelling Triple Lumen Catheter
Third lumen
* Delivers irrigations and instillations
* Clearing the bladder of blood, pus or sediment
* Maintains patency of lumen
* Measurement of urine output
* Deduct input to get accurate output
Catheter Irrigations
Common after bladder surgery
* Continuous or intermittent
* Closed catheter irrigation
* Decreased risk of infection
* Keeps catheter free of clots and
sediment
* Cannot be delegated
complications of catheter irrigation
bright red blood
pain
irrigation solution does not return
coude catheter
Single lumen, Stiffer tip
* Enlarged prostate
* Less traumatic
* Easier to guide
Infants Fr
5-6
Children Fr
8-10
Young Girl Fr
12
Women Fr
14-16
Men Fr
16-18
latex catheter
up to 3 weeks
plastic catheter
intermittent
Silicon/Teflon catheter
Long term up to 2-
3 months
What can be Delegated catheter-wise
- Assist with positioning and privacy
- Report patient discomfort/pain
- Leaking of urine around catheter
- Abnormal characteristics of urine: Blood, odor, drainage
- Emptying drainage bag: Report output
- Perineal care: Same sex caregiver if possible
catheter specimen collection characteristics
cannot be delegated
needle free
port sampling
suprapubic catheter
Inserted surgically
* Reinsert immediately if dislodged
* Cover with sterile dressing
* Blockage of outflow: Urethra
* Long term catheterization
abnormal findings from catheter assesment
- More than 500 mL to 1000 mL of urine drains
at the time of insertion - Bladder discomfort
- Unable to advance the catheter
- Lack of urine
- Leakage of urine from around the catheter
- Pain while inflating the balloon: Is the catheter in the urethra?
when to collect specimen from a catheter
Specimen can be collected from drainage
bag ONLY WHEN IMMEDIATELY inserted
delegated care of the suprapubic catheter
Delegated care
* Increase fluid intake (2200 mL/24 hours)
* Empty drainage bag
* Report signs and symptoms of infection
* Drainage at insertion site, foul order, redness
Condom Catheter Indications
- Men who have complete and
spontaneous bladder emptying - Incontinence
- Nocturia
- can be mobile
condom catheter parts
Held in place with adhesive
* Attached to the drainage bag
* Bedside bag
* Large volume
* Leg bag
* Small volume, ambulatory
Orthotopic neobladder
Reconstructed bladders/reservoirs made from intestines
Nephrostomy Tubes
surgically placed catheter into the renal pelvis
due to an obstructed ureter
Ventilation
Process of moving gases in and out of the lungs
Perfusion
Ability of the cardiovascular system to pump oxygenated blood to the tissues and
return deoxygenated blood to the lungs
Diffusion
Responsible for moving the respiratory gases from one area to another by
concentration gradients
Postural drainage oxygenation benefits
Drainage, positioning, and turning that improves secretion clearance and
oxygenation
Positive expiratory pressure (PEP)
Air inhaled easily, forces patient to exhale against resistance
Ambulation oxygenation benefits
Maintains and promotes lung expansion
Immobility leads to atelectasis, ventilator-associated pneumonia, muscle weakness
semi-fowlers position degree and benefits
Maintains and promotes lung expansion
45 degree
Pursed-lip breathing
Deep inspiration and prolonged expiration through pursed lips
Diaphragmatic breathing
Increases tidal volume and decreases respiratory rate
Invasive mechanical ventilation
Aka positive pressure ventilation
Used with artificial airways (ETT or TT)
Physiologic indications
-Reduce work of breathing
-Increase lung volume
-Support cardiopulmonary gas exchange
Clinical indications
- Relieve respiratory distress, reverse hypoxia, prevent/reverse atelectasis and
respiratory muscle fatigue, stabilize chest wall, decrease oxygen consumption, allow
for sedation or neuromuscular block
Ventilator-associated pneumonia (VAP)
Noninvasive positive pressure ventilation
(NPPV)
Treat obstructive sleep apnea (OSA), COPD, neuromuscular disorders,
cardiogenic pulmonary edema
Used at home and in acute care settings
Contraindications
Advantages
Continuous positive airway pressure (CPAP)
Steady stream of pressure throughout a patient’s breathing cycle
Bilevel positive airway pressure (BiPAP)
Provides inspiratory positive airway pressure and expiratory airway pressure (aka
positive end-expiratory pressure (PEEP)
oxygen therapy goal
Goal: Lowest amount of oxygen possible to achieve adequate tissue oxygenation
Low flow devices: Nasal cannula rates
1-6 LPM
FiO2: 24-44%
nasal cannula pros and cons
Advantages
- Safe and simple, easily tolerated, effective for low concentration, doesn’t impede
speaking or eating, disposable
Disadvantages
-Unable to use with nasal obstruction, can be drying, can dislodge, may cause skin
irritation, patient breathing pattern affects Fio2
Low flow devices: Oxygen-conserving
cannula (Oxymizer) rates
8LPM
FiO2: 30-50%
Low flow devices: Oxygen-conserving
cannula (Oxymizer) pros and cons
For long term O2 use in the home
More expensive than standard cannula
Low flow devices: Simple face mask rates
6-12 LPM
FiO2: 35-50%
Low flow devices: Simple face mask pros and cons
Useful for short periods
Contraindicated in patients who retain CO2
Low flow devices: Partial and
nonrebreather masks
10-15 LPM
FiO2: 60-90%
partial and nonrebreather masks
Useful for short periods
Bag should always be partially inflated
Needs tight seal
High flow devices: Venturi mask rates
FiO2: 24-50%
venturi masks purpose
Provides specific amount of oxygen with humidification
Low, constant O2
High flow devices: High-flow nasal
cannula
Provides specific amount of oxygen with humidification
Low, constant O2
high-flow nasal cannula
Adjustable FiO2 with modifiable flow
Provides heated, humidified oxygen
Noninvasive ventilation: CPAP and
BiPAP rates
iO2: 21-100%