Patho Exam 2 Flashcards
structures of the upper airway
nasopharynx and oropharynx
divides the upper and lower airways
The larynx
Structures in the lower airway
- The trachea and bronchi
The right and left main bronchi enter the lungs where?
Hila
The goblet cells secrete
mucus
What is the process called where carbon dioxide (CO2) is exchanged for oxygen?
Respiration
refers to actual blood flow and oxygen delivery
circulation
Which receptor monitors pH, PaCO2, and PaO2 of arterial blood?
Chemoreceptors
Which of the following would shift the oxyhemoglobin dissociation curve to the left?
Hypocapnia
Which are steps in the process of gas exchange?
- Ventilation
- Diffusion
- Perfusion
Which structures are considered part of the acinus?
- Respiratory bronchioles
- Alveolar ducts
- Alveoli
Which muscle has a major role in respiration?
- External Intercostal
- Diaphram
The respiratory center characteristics
- located in the brain stem.
- affecting the respiratory muscles’ ability to contract and relax
- transmitting impulses that bring about the physical act of breathing.
- influenced by emotions and pain.
inadequate alveolar ventilation in relation to metabolic demands
Hypoventilation
Which pathology most commonly results in pulmonary edema?
Increasing pressure in the left chambers of the heart
a diffuse, inflammatory obstruction of the small airways or bronchioles
Bronchiolitis
abnormal permanent enlargement of gas-exchange airways (acini) accompanied by destruction of alveolar walls without obvious fibrosis.
Emphysema
A patient has symmetrically dilated airways. Which type of bronchial dilation is this?
Cylindrical
when the bronchi become large and balloon like.
saccular
when constrictions and dilations destroy the bronchi.
Varicose
the persistent abnormal dilation of the bronchi
Bronchiectasis
indicates there was trauma to the chest resulting in the collapse of the lung
Secondary pneumothorax
Which diagnosis finding is characteristically present when the parietal pleura is infected?
Friction Rub
often associated with ectopic hormone production, especially antidiuretic hormone
Small Cell Carcinoma
Which condition can cause of hypercapnia?
- Disease of the medulla
- Large airway obstruction
- Thoracic cage abnormalities
- Depression of Respiratory Center
Expiratory stridor
a monophonic wheeze
Airway Obstruction is most likely to occur in which age group?
- in infants.
- This is due to their smaller airway and smaller diameter.
- more cartilage and collapse easily.
- A cough can be a sign of infection, foreign body, or obstruction.
Surfactant
- a lipid protein mix produced by type II cells.
- is found in the lining of the alveoli
- reduces surface tension
A 20 year old male presents to his primary health care provider, difficulty breathing when lying down. What term should the nurse use to document this condition?
orthopnea
Define Paroxysmal Nocturnal Dyspnea
- attacks of SOB & coughing that occur at night.
- Awakens the person from sleep, and may be quite frightening.
A patient with PND is most likely to have
left ventricular failure
A 20 year old male is in acute pain. ABG reveals decreased CO2. What is most likely the cause
hyperventilation
Cyanosis definition
- bluish discoloration of the skin & mucous membranes,
- caused by increasing amounts of desaturated or reduced hemglobin in the blood.
Reduced oxygenation of arterial blood
Hypoxemia