L17 Lab Tests (Asthma)

Description

PHCY310 Quiz on L17 Lab Tests (Asthma), created by Mer Scott on 12/04/2019.
Mer Scott
Quiz by Mer Scott, updated more than 1 year ago
Mer Scott
Created by Mer Scott over 5 years ago
7
0

Resource summary

Question 1

Question
Pneumonia will affect the gas exchange because it affects the alveolar spaces.
Answer
  • True
  • False

Question 2

Question
Alveolar ventilation (Av) allows gas to move from the lungs to blood. An adequacy of [blank_start]capillary[blank_end] flow to the lungs is required for adequate [blank_start]gas[blank_end] exchange. When the capillary flow is compromised, a mismatch will occur between [blank_start]Av and perfusion[blank_end]. (I.e. even when alveolar ventilation is fine, if blood flow to the alveolar capillaries is poor the perfusion of gasses will be [blank_start]poor[blank_end].) Factors that affect pulmonary capillary flow include: - pulmonary [blank_start]embolism[blank_end] - right [blank_start]ventricular[blank_end] dysfunction
Answer
  • capillary
  • gas
  • Av and perfusion
  • poor
  • embolism
  • ventricular

Question 3

Question
When PaCO2 gets high we breathe slower.
Answer
  • True
  • False

Question 4

Question
Spirometry tests assess alveolar ventilation. A FEV/FVC (Forced Expiratory Volume (1s) & Forced Vital Capacity) ratio is usually [blank_start]0.8[blank_end]. Peak expiratory flow rate (L/min) values of PEFR depend on size, sex and age, but typically a healthy range for adults is [blank_start]400 - 600[blank_end] L/min. PEFR tends to be less [blank_start]sensitive[blank_end] to small airways disease. Obstructive diseases ([blank_start]asthma, COPD, bronchitis[blank_end]) reduce the expiration ability (reduce [blank_start]FEV1[blank_end] and [blank_start]FEV/FVC[blank_end] ratio.) There is evidence of [blank_start]reversibility[blank_end]. Restrictive diseases ([blank_start]fibrosis[blank_end], end stages of [blank_start]COPD[blank_end]) reduce the usable capacity (reduce [blank_start]FVC[blank_end], and [blank_start]reduce[blank_end] FEV.)
Answer
  • 0.8
  • 400 - 600
  • sensitive
  • asthma, COPD, bronchitis
  • FEV1
  • FEV/FVC
  • reversibility
  • fibrosis
  • COPD
  • FVC
  • reduce

Question 5

Question
Partial pressure of oxygen & carbon dioxide: 1. PaO2, partial pressure of oxygen in the arterial circulation - PaO2 is dependent on [blank_start]inspired[blank_end] O2 and [blank_start]atmospheric[blank_end] pressure. - Values [blank_start]< 60 mmHg[blank_end] typically cause symptoms. 2. PaCO2, partial pressure of CO2 in the arterial circulation - Normal value is [blank_start]40 mmHg[blank_end] - It is produced by [blank_start]tissues[blank_end] during internal respiration - Values [blank_start]> 50 mmHg[blank_end] typically cause symptoms
Answer
  • inspired
  • atmospheric
  • < 60 mmHg
  • 40 mmHg
  • tissues
  • > 50 mmHg
Show full summary Hide full summary

Similar

Jekyll and Hyde
elliesussex
P2 Radioactivity and Stars
dfreeman
Global History Regents Review Notes (Europe)
Jen Molte
Biology F212 - Biological molecules 1
scarlettcain97
Geography - Restless Earth
pip.kaley
IB Biology: Photosynthesis HL and SL
grenouilleverte3
Mind Maps with GoConqr
croconnor
Geometry Vocabulary
patticlj
“The knower’s perspective is essential in the pursuit of knowledge.” To what extent do you agree with this statement?
Lucia Rocha Mejia
Components of Physical Fitness
luciwig88
Section 1 - Nature of Economics
Nikolas Reece