Practice exams Flashcards
Which node does sinus tachycardia originate in?
SA node
What does the QT interval measure?
depolarization and repolarization time of the ventricles
How may digitalis affect the QT interval?
May actually shorten it.
What does the ST segment represent?
isoelectric period following depolarization
How would digitalis affect the ST segment?
Sagging
How would an MI affect the ST segment?
May elevate it, also may be elevated as much as 2mm in african american males.
Duchenne MD affects proximal or distal muscles first?
Proximal
Spondylitis
Inflammation of the vertebra
Spondylolysis
Defect in the pars or arch of vertebra. Most common in L5
Spod ylolisthesis
Forward displacement of one vertebra over another.
Spondyloptosis
Vertebral body is completely off of the adjacent body (Grade 5)
Which laboratory finding could be MOST related to the use of silver sulfadiazine?
Leukopenia (<5,000 mm^3).
What types of medications could cause hypokalemia?
steroids, diuretics
What type of topical agent could affect body fluid pH?
mafenide acetate
The width of the BP bladder should be ___% of the circumference of the midpoint of the limb
40%, avg for adults is 5-6 inches
Pt status post stoke is on a mat prone on elbows, working on lateral weight shifts. Which therapeutic exercise technique would allow the patient to improve dynamic stability with this activity?
Approximation: Facilitates contraction and stability through joint compression.
What does the Barthel Index examine? Scoring?
10 ADLs, score from 0-100, increments of 5. 100 is best.
Hubbard tank
full-body immersion, 4x8x6
Highboy tank
for longer body parts, but pt can’t fully extend LE in sitting, but is deep enough for mid thoracic region
Lowboy tank
Can extend LE, but not very deep
If PT measures pt’s volume after maximal inhalation then exhalation, what is it measuring?
Vital capacity
What does a large sample size increase?
The likelihood of rejecting the null
What do most cardiac guidelines say for max HR allowed in phase I?
130 bpm or no more than 20bpm above for post-MI, 30bpm for post-surgery
A decrease in systolic pressure of ____mmHg during phase 1 cardiac should not be allowd
Shouldn’t exceed 10mmHg
A diastolic blood pressure of ___ is considered the upper limit for exercise in phase I cardiac rehab
110mmHg
The optimal level of LDL is <___mg/dL
100
Normal temp for a hot pack machine is ____F or ____C
160 or 71
How far down does a stage III ulcer extend?
Down through subcutaneous tissue, can be to, but not through, underlying fascia, so no muscle.
Which muscles of respiration most active during forced expiration?
Internal intercostals
What is the PRIMARY limitation of a max exercise test?
requires them to work to their point of volitional fatigue, usually stop before them, reduces the sensitivity of estimate of maximum oxygen uptake.
(true positive)
How much pressure would typically be necessary to control LE edema for ambulatory patients?
30-40 mmHg
A pressure of ___ to ___ is used to control scar tissue formation.
20-30
A pressure of ___ to ___ is characteristic of shelf stockings used to prevent DVTs
16-18
What is electromyography response is MOST indicative of a normal muscle at rest?
electrical silence
Polyphasic potentials are from what?
Denervated motor unit, 5 or more phases.
Most cost-effective way to screen for osteoporosis?
Height
PRIMARY purpose of an arterial line?
Measure blood pressure
Definition of a wheeze
high constant pitch during exhalation
Rales
synonymous with crackles
Rhonchi
lower-pitched continues, adventitious breath sounds occurring during inspiration or expiration and are cause by turbulence of air passing through secretions in large and mid-sized bronchi
What is the best medication for into for LE ulcer healing? Pos or neg charge?
zinc-positively charged.
A duration of ___ to ___ minutes of spinal traction may be warranted if the patient has tolerated it in previous session(s)
20-30-good for tissue stretch
Athetosis usually occurs when which area of the brain is damaged?
basal ganglia
Lingula is a section of which part of the lung?
L upper lobe
How often should nursing staff turn a person post-stroke?
every 2 hours
2 things an arterial line can do?
BP and blood gas
What does a central venous line measure?
R atrial pressure, emergency pacemaker placements, fluids/meds
What does a pulmonary artery line measure?
inserted through R heart to pulmonary artery to monitor cardiovascular pressures and mixed venous blood gases.
Mastitis
infection of the fatty breast tissue typically associated with postpartum breast feeding, looks like cellulitis but with characteristic painful lumps.
Erysipelas
form of cellulitis caused by strep. More defined with unmistakable bright red and sharp demarcation borders.
What is the trendelenburg position?
head lower than feet, for lower lobe drainage, and hypotensive patients
Which cryotherapeutic agent proves the greatest magnitude of tissue cooling?
ice massage
Dependent edema is associated with ___-sided heart failure
R (fluid in liver, abdomen, and ankles)
ADA requires minimum of ____ inches for pt to safely go through doorway with W/C?
32
What complication of MI is patient MOST susceptible shortly after?
arrhythmias (90% of people who have had an MI)
Thrombus or cardiac muscle damage can occur but not MOST common