Exam (elaborations)
NUR 309 Exam 2 questions with correct answers
- Course
- Nurs 309
- Institution
- Liberty University
NUR 309 Exam 2 questions with correct answers
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NUR 309 Exam 2 questions with correct answersVentilation Correct Answer-the movement of air into and out of the
lungs through the act of breathing
Respiration Correct Answer-the exchange of the gases oxygen and
carbon dioxide in the lungs (external)
Oxygenation Correct Answer-how well the cells, tissues, and organs of
the body are supplied with oxygen
Hyperventilation Correct Answer-breathing fast and deep
Hypoventilation Correct Answer-breathing slow and shallow
Hypoxemia Correct Answer-low level of oxygen in the blood; due to
lung or pulmonary circulation disorders; hypoxia may still occur in the
organs and tissues because of poor circulation; possible cause:
HYPOventilation and interruption of arterial blood flow
Hypoxia Correct Answer-oxygen deficiency in the body tissues and
organs, due to hypoemia or perfusion problems; effects depend on the
organs affected; i.e. CNS tissue=abnormal brain function, renal
tissue=abnormal kidney function
Perfusion Correct Answer-blood flow to a capillary bed to provide
nutrients and oxygen to tissues and organs (internal respiration)
,CO = HR x SV Correct Answer-Cardiac output(L/min) = Heart
rate(beats/min) x Stroke volume(L/beat)
Early sxs of hypoxia: RAT Correct Answer--restlessness
-anxiety
-tachycardia/tachypnea
Late sxs of hypoxia: BED Correct Answer--bradycardia
-extreme restlessness
-severe dyspnea
Drive to breathe Correct Answer-carbon dioxide (CO2)
COPD considerations Correct Answer-low oxygen level becomes the
primary respiration drive
DVT prevention Correct Answer--leg exercises
-anti-embolism stockings
-pneumatic compression devices (SCDs)
-anticoagulation prophylaxis (heprin)
-avoid constriction
-positioning of a pt (turning, elevating extremities); differs from
positioning for claudication
, Respiration center Correct Answer-medulla oblongata
Intervention for optimal oxygenation Correct Answer-encourage fluids
Body mechanics Correct Answer-the way we move our bodies; body
alignment, balance, coordination, and joint mobility
Range of Motion (ROM) Correct Answer-the maximum movement
possible at a joint
-Active ROM: can be done by the individual
-Passive ROM: pt is unable to do themselves; prevents contractures
Isometric Correct Answer-muscles contractions without movement;
reduces orthostatic hypotension
Isotonic Correct Answer-move joint during muscle contraction, i.e. slow
walking, lifting weights
Isokinetic Correct Answer-combines isotonic and isometric; used in
physical therapy
Hazards of immobility Correct Answer--secondary disabilities may
develop in body systems
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