NURS 86936

subject Type Homework Help
subject Pages 17
subject Words 1293
subject Authors Terry Des Jardins

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page-pf1
Which condition is described as "a state of unconsciousness from which one cannot be
awakened by even the most forceful stimuli"?
a. coma
b. sleep
c. lethargy
d. deep sleep
Which structures form the posterior section of the floor of the nasal cavity?
I. Nasal bones
II. Cribriform plate of the ethmoid bone
III. Palatine process of maxilla
IV. Superior portion of soft palate
a. IV only
b. III and IV only
c. II, III, and IV only
d. 1, II, III only
page-pf2
In addition to ventilatory changes, which of the following can occur in response to
peripheral
chemoreceptor stimulation?
I. Peripheral vasoconstriction
II. Systemic arterial hypertension
III. Bradycardia
IV. Increased pulmonary vascular resistance
a. I, II, and IV only
b. I, II, III, and IV
c. I and II only
d. I and IV only
page-pf3
What is the normal diffusion capacity of CO?
a. 25 mL/min/mm Hg
b. 20 mL/min/mm Hg
c. 40 mL/min/mmHg
d. 60 mL/min/mmHg
How does positive pressure ventilation affect urinary output?
page-pf4
a. It impedes venous return which stimulates ADH release and decreases urinary output
b. It enhances venous return which stimulates ADH release and increases urinary output
c. It impedes venous return which stimulates aldosterone release and decreases urinary
output
d. It enhances venous return which stimulates alsosterone release and increases urinary
output
What value is derived when (CcO2-CaO2) is divided by (CcO2-CvO2 )
a. intrapulmonary shunt (QS/QT)
b. A-a gradient
c. O2ER
d. VO2
page-pf5
Which acid base abnormality results from hypokalemia?
a. metabolic alkalosis
b. metabolic acidosis
c. combined metabolic and respiratory acidosis
d. combined metabolic and respiratory alkalosis
page-pf6
Which vessels carry blood away from the heart?
a. arteries
b. veins
c. capillaries
d. arterioles
Which limb leads are considered to be the left lateral leads?
a. I and aVL
b. II and aVL
c. III and aVL
d. Leads I, II, and avL
page-pf7
What term is used in respiratory care to describe the movement of gas in and out of the
lung and the pressure changes required to move the gas?
a. dynamic
b. static
c. passive
d. respiration
Which of the following can cause pulmonary emboli?
I. Prolonged inactivity
II. Pregnancy and childbirth
page-pf8
III. Obesity
IV. Hypercoagulation disorders
a. I, II, III, and IV
b. I and IV only
c. I, III, and IV only
d. I, II, and III only
What would the ventilation-perfusion ratio equal if pulmonary capillary blood flow
equals 4 L/min and the minute alveolar ventilation equals 5 L/min?
a. 1.25
b. 0.8
c. 1.0
d. 0.66
page-pf9
In which sleep phase do the majority of dreams occur?
a. REM sleep
b. Stage 3
c. Stage 2
d. Stage 1
Which structure extends from the base of the tongue to the upper end of the trachea?
a. larynx
page-pfa
b. laryngopharynx
c. thyroid gland
d. rima glottidis
Which structure moves in a "pump handle-like motion" during inspiration?
a. sternum
b. external intercostals
c. diaphragm
d. internal intercostals
page-pfb
Which volume or capacity remains in the lungs after a forced exhalation?
a. RV
b. FRC
c. ERV
d. IC
What are the most commonly measured anions in the anion gap?
a. chloride and bicarbonate
page-pfc
b. sodium and chloride
c. bicarbonate and sodium
d. bicarbonate and potassium
Which nerve emerges from the spinal cord between C3 and C5?
a. phrenic
b. vagus
c. IX cranial
d. XI cranial
page-pfd
What structure is located between the glossoepiglottic folds in the posterior
oropharynx?
a. vallecula epiglottica
b. lingual tonsils
c. palatine tonsils
d. rima glottidis
If a patient who generates an intrapleural pressure of -4 mmHg to inhale 450 mL
experiences inflammation and bronchospasm that reduce the radius of the bronchial
airways to one-half of their original size, what pressure must the patient generate to
inhale the same tidal volume?
a. 64 mm Hg
page-pfe
b. 48 mm Hg
c. 20 mm Hg
d. 16 mm Hg
In which sleep stage(s) would K complexes commonly appear?
a. N2 and N3
b. N1
c. Stage W
d. REM
page-pff
In cm, what is the average diameter of the adult trachea?
a. 1.5 - 2.5 cm
b. 2.0-3.5 cm
c. 0.75 - 1.0 cm
d. 0.5 - 1.5 cm
Under normal resting conditions, what is the total transit time required for blood to
move through the alveolar capillary system?
page-pf10
a. 0.75 seconds
b. 0.25 seconds
c. 0.5 seconds
d. 1 second
Which valve lies at the base of the ascending aorta?
a. aortic semilunar
b. mitral
c. tricuspid
d. pulmonary semilunar
page-pf11
Which variable appears on the left side (y axis) of the oxyhemoglobin dissociation
curve nomogram?
a. percentage of hemoglobin chemically bound to oxygen
b. total oxygen content
c. oxygen pressure
d. barometric pressure
page-pf12
If the bicarbonate to carbonic acid ratio is 15 and the log 15 equals 1.176), what would
the pH equal?
a. pH would be 7.28
b. pH would be 7.18
c. pH would be 7.58
d. insufficent information to calculate
In a healthy individual at rest, what is the average carbon dioxide tension of venous
content blood as it enters the pulmonary capillary?
page-pf13
a. 46 mm Hg
b. 40 mm Hg
c. 35 mm Hg
d. 27 mm Hg
Which of the following conditions would result in an increased ventilation-perfusion
ratio?
I. Pulmonary emboli
II. Pulmonary Hypertension
III. Pneumothorax
IV. Cardiac arrest
a. I, II, III, IV
page-pf14
b. I. II, and III only
c. I, and III only
d. II, III, and IV only
What is the term for the site where the heart is in contact with the chest wall?
a. PMI
b. POC
c. PMC
d. MIP
page-pf15
What is the normal P50?
a. 27 mm Hg
b. 20 mm Hg
c. 30 mm Hg
d. 50 mm Hg
What is the end result of venous admixture?
a. reduced PaO2 and reduced CaO2 returning to left side of the heart
b. reduced PaO2 and reduced CaO2 returning to left side of the heart
page-pf16
c. increased PaO2 and increased CaO2 returning to left side of the heart
d. increased PaO2 and increased CaO2 returning to left side of the heart
What would you conclude regarding a fetus' lung maturity if the S:A ratio equaled 60?
a. fetal lung maturity
b. immature fetal lungs
c. uncertain lung maturity
d. Unable to make a conclusion since the S:A ratio does not assess lung maturity
page-pf17
Which of the following conditions reduce the alveolar surface area?
I. Emphysema
II. Excessive airway secretions
III. Pneumothorax
IV. Sinusitits
a. I, II, and III only
b. I, II, III, and IV
c. I and III only
d. I only

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