In normal breathing, what is the main muscle(s) involved in
inspiration?
0/1
The
diaphragm
The lungs
The
intercostal
All of the
above
Correct answer
The diaphragm
What is respiration?
1/1
· The
movement of air into and out of the lungs to continually refresh the gases
there, commonly called ‘breathing’
· Movement of
oxygen from the lungs into the blood, and carbon dioxide from the lungs into
the blood, commonly called ‘gaseous exchange’
· Movement of
oxygen from blood to the cells, and of carbon dioxide from the cells to the
blood
· The transport of oxygen from the outside air to
the cells within tissues, and the transport of carbon dioxide in the opposite
direction
What should be included in your initial assessment of your
patient's respiratory status?
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· Review the
patient's notes and charts, to obtain the patient's history
· Review the
results of routine investigations
· Observe the
patient's breathing for ease and comfort, rate and pattern
· Perform a
systematic examination and ask the relatives for the patient's history
Correct answer
Observe the patient's
breathing for ease and comfort, rate and pattern
What is the most accurate method of calculating a respiratory
rate?
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· Counting
the number of respiratory cycles in 15 seconds and multiplying by 4
· Counting
the number of respiratory cycles in 1 minute One cycle is equal to the complete
rise and fall of the patient's chest
· Not telling
the patient as this may make them conscious of their breathing pattern and
influence the accuracy of the rate
· Placing
your hand on the patient's chest and counting the number of respiratory cycles
in 30 seconds and multiplying by 2
Correct answer
Counting the number of
respiratory cycles in 1 minute One cycle is equal to the complete rise and fall
of the patient's chest
What should be included in a prescription for oxygen therapy?
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· You don't
need a prescription for oxygen unless in an emergency
· The date it
should commence, the doctor's signature and bleep number
· The type of
oxygen delivery system, inspired oxygen percentage and duration of the therapy
· You only
need a prescription if the patient is going to have home oxygen
Correct answer
The type of oxygen delivery
system, inspired oxygen percentage and duration of the therapy
You are caring for a patient with a tracheostomy in situ who
requires frequent suctioning. How long should you suction for?
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· If you
preoxygenate the patient, you can insert the catheter for 45 seconds
· Never
insert the catheter for longer than 10-15 seconds
· Monitor the
patient's oxygen saturations and suction for 30 seconds
· Suction for
50 seconds and send a specimen to the laboratory if the secretions are purulent
Correct answer
Never insert the catheter
for longer than 10-15 seconds
You are caring for a patient with a history of COAD who is
requiring 70% humidified oxygen via a facemask. You are monitoring his response
to therapy by observing his colour, degree of respiratory distress and
respiratory rate. The patient's oxygen saturations have been between 95% and
98%. In addition, the doctor has been taking arterial blood gases. What is the
reason for this?
0/1
· Oximeters
may be unreliable under certain circumstances, eg if tissue perfusion is poor,
if the environment is cold and if the patient's nails are covered with nail
polish
· Arterial
blood gases should be sampled if the patient is receiving >60% oxygen
· Pulse
oximeters provide excellent evidence of oxygenation, but they do not measure
the adequacy of ventilation
· Arterial
blood gases measure both oxygen and carbon dioxide levels and therefore give an
indication of both ventilation and oxygenation
Correct answer
Arterial blood gases
measure both oxygen and carbon dioxide levels and therefore give an indication
of both ventilation and oxygenation
When using nasal cannulae, the maximum oxygen flow rate that
should be used is 6 litres/min. Why?
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· Nasal
cannulae are only capable of delivering an inspired oxygen concentration
between 24% and 40%
· For any
given flow rate, the inspired oxygen concentration will vary between breaths,
as it depends upon the rate and depth of the patient's breath and the
inspiratory flow rate
· Higher
rates can cause nasal mucosal drying and may lead to epistaxis
· If oxygen
is administered at greater than 40% it should be humidified You cannot humidify
oxygen via nasal cannulae
Correct answer
Higher rates can cause
nasal mucosal drying and may lead to epistaxis
Why is it essential to humidify oxygen used during respiratory
therapy?
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· Oxygen is a
very hot gas so if humidification isn't used, the oxygen will burn the
respiratory tract and cause considerable pain for the patient when they breathe
· Oxygen is a
dry gas which can cause evaporation of water from the respiratory tract and
lead to thickened mucus in the airways, reduction of the movement of cilia and
increased susceptibility to respiratory infection
· Humidification
cleans the oxygen as it is administered to ensure it is free from any aerobic
pathogens before it is inhaled by the patient
· Humidifying
oxygen adds hydrogen to it, which makes it easier for oxygen to be absorbed to
the blood in the lungs This means the cells that need it for intracellular
function have their needs met in a more timely manner
Correct answer
Oxygen is a dry gas which
can cause evaporation of water from the respiratory tract and lead to thickened
mucus in the airways, reduction of the movement of cilia and increased
susceptibility to respiratory infection
In a fully saturated haemoglobin molecule, responsible for
carrying oxygen to the body's tissues, how many of its haem sites are bound
with oxygen?
1/1
2
4
6
8
Prior to sending a patient home on oxygen, healthcare providers
must ensure the patient and family understand the dangers of smoking in an oxygen-rich
environment. Why is this necessary?
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· It is
especially dangerous to the patient's health to smoke while using oxygen
· Oxygen is
highly flammable and there is a risk of fire
· Oxygen and
cigarette smoke can combine to produce a poisonous mixture
· Oxygen can
lead to an increased consumption of cigarettes
Correct answer
Oxygen is highly flammable
and there is a risk of fire
Which is not considered in an oxygen prescription?
0/1
· It should
be prescribed
· Regular
pulse oximetry monitoring must be available in all clinical environments
· Can be
given to patients who are not hypoxaemic
· It must be
signed and dated
Correct answer
Can be given to patients
who are not hypoxaemic
Mr Green, a COPD patient was sent home with oxygen prescription
at 2 litres per minute. He is dyspnoeic, anxious and panicking when you visited
him. What is your most immediate nursing action to relieve dyspnoea?
0/1
· Call the
emergency department for ambulance
· Increase O2
rate
· Tell
patient to calm down in a loud voice
· Calmly
instruct patient to do deep breathing
Correct answer
Calmly instruct patient to
do deep breathing
Patient is in for oxygen therapy
0/1
· A
prescription is required including route, method and how long
· No
prescription is required unless he will use it at home
· Prescription
not required for oxygen therapy
Correct answer
A prescription is required
including route, method and how long
What percentage of the air we breath is made up of oxygen?
0/1
· 16%
· 21%
· 26%
· 31%
Correct answer
21%
Which of the following oxygen masks is able to deliver between
60-90% of oxygen when delivered at a flow rate of 10 – 15L/min?
0/1
· Simple semi
rigid plastic masks
· Nasal
cannulas
· Venture
high flow mask
· Non-rebreathing
masks
Correct answer
Non-rebreathing masks
What do you need to consider when helping a patient with
shortness of breath sit out in a chair?
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· They
shouldn’t sit out in a chair; lying at is the only position for someone with
shortness of breath so that there are no negative effects of gravity putting
pressure on the lungs
· Sitting in
a reclining position with the legs elevated to reduce the use of postural
muscle oxygen requirements, increasing lung volumes and optimizing perfusion
for the best V/Q ratio The patient should also be kept in an environment that
is quiet so they don’t expend any unnecessary energy
· The patient
needs to be able to sit in a forward leaning position supported by pillows They
may also need access to a nebulizer and humidi ed oxygen so they must be in a
position where this is accessible without being a risk to others
· There are
two possible positions, either sitting upright or side lying Which is used is
determined by the age of the patient It is also important to remember that they
will always need a nebulizer and oxygen and the air temperature must be below
20° C
Correct answer
The patient needs to be
able to sit in a forward leaning position supported by pillows They may also
need access to a nebulizer and humidi ed oxygen so they must be in a position
where this is accessible without being a risk to others
Your patient has bronchitis and has difficulty in clearing his
chest. What position would help to maximise the drainage of secretions?
0/1
· Lying flat
on his back while using a nebulizer
· Sitting up
leaning on pillows and inhaling humidified oxygen
· Lying on
his side with the area to be drained uppermost after the patient has had
humidified air
· Standing up
in fresh air taking deep breaths
Correct answer
Lying on his side with the
area to be drained uppermost after the patient has had humidified air
Many people suffering with long-term breathlessness adopt
positions that will best facilitate their inspiratory muscles. All of the
following are resting positions that can help reduce the work breathing except:
0/1
· Lying flat
on his back while using a nebulizer
· High
side-lying with an oxygen saturation at 88-92%
· Forward
lean sitting position with a temporary 2% fall in oxygen saturation
· Relaxed
standing position with a temporary 4% fall in oxygen saturation
Correct answer
Lying flat on his back
while using a nebuliser
Position to make breathing effective?
1/1
· Left
lateral
· Supine
· Right
Lateral
· High sidelying
You are caring for a 17 year old woman who has been admitted
with acute exacerbation of asthma. Her peak flow readings are deteriorating and
she is becoming wheezy. What would you do?
0/1
· Sit her
upright, listen to her chest and refer to the chest physiotherapist
· Suggest
that the patient takes her Ventolin inhaler and continue to monitor the patient
· Undertake a
full set of observations to include oxygen saturations and respiratory rate
Administer humidified oxygen, bronchodilators, corticosteroids and
antimicrobial therapy as prescribed
· Reassure
the patient: you know from reading her notes that stress and anxiety often
trigger her asthma
Correct answer
Undertake a full set of
observations to include oxygen saturations and respiratory rate Administer
humidified oxygen, bronchodilators, corticosteroids and antimicrobial therapy
as prescribed
A COPD patient is about to be discharged from the hospital. What
is the best health teaching to provide this patient?
1/1
· Increase
fluid intake
· Do not use
home oxygen
· Quit smoking
· Nebulize as
needed
What ABG readings will you expect among COPD patients?
0/1
· Increased
pCO2, decreased pO2
· Decreased
pCO2 and pO2
· Increased
pCO2 and pO2
· Decreased
pCO2, increased pO2
Correct answer
Increased pCO2, decreased
pO2
Which of the following indicates signs of severe Chronic
Obstructive Pulmonary disease (COPD)?
1/1
· High pO2
and high pCO2
· Low pO2 and
low pCO2
· Low pO2 and high pCO2
· High pO2
and low pCO2
As a nurse, what health teachings will you give to a COPD
patient?
0/1
· Encourage
to stop smoking
· Administer
oxygen inhalation as prescribed
· Enroll in a
pulmonary rehabilitation programme
· All of the
above
Correct answer
All of the above
Joy, a COPD patient is to be discharged in the community. As her
nurse, which of the following interventions will you encourage her to do to
prevent progression of disease.
1/1
· Oxygen
therapy
· Breathing
exercise
· Cessation of smoking
· Coughing
exercise
A COPD patient is in home care. When you visit the patient, he
is dyspnoeic, anxious and frightened. He is already on 2 liter oxygen with
nasal cannula. What will be your action?
0/1
· Increase
the flow of oxygen to 5 L
· Ask the
patient to calm down
· Call the
emergency service
· Give
Oramorph 5 mg medications as prescribed
Correct answer
Ask the patient to calm
down
Which of the following is not a cause of Type 1 (hypoxaemic)
respiratory failure?
1/1
· Asthma
· Pulmonary
oedema
· Drug overdose
· Granulomatous
lung disease
What is the purpose of clamping a chest tube?
0/1
· To prevent
further lung collapse and entry of air
· To minimize
the feeling of pain on drain insertion
· To aid the
drain into the correct position
· To minimize
risk of infection
Correct answer
To prevent further lung
collapse and entry of air
All but one is an indication for pleural tubing:
0/1
· Pneumothorax
· Abnormal
blood clotting screen or low platelet count
· Malignant
pleural effusion
· Post-operative,
for example thoracotomy, cardiac surgery
Correct answer
Abnormal blood clotting
screen or low platelet count
Which of the following is an indication for intrapleural chest
drain insertion?
0/1
· Pneumothorax
· Tuberculosis
· Asthma
· Malignancy
of lungs
Correct answer
Pneumothorax
The three most significant life-threatening emergency situations
with a tracheostomy tube include:
0/1
· Blockage,
displacement, vagal reflex
· Blockage,
displacement, hypoxia
· Blockage,
displacement, haemorrhage
· Blockage,
displacement, raised ICP
Correct answer
Blockage, displacement,
haemorrhage
Which of the following is a potential complication of putting an
oropharyngeal airway adjunct:
0/1
· Retching,
vomiting
· Bradycardia
· Obstruction
· Nasal
injury
Correct answer
Obstruction
When an oropharyngeal airway is inserted properly, what is the
sign?
0/1
· Airway
obstruction
· Retching
and vomiting
· Bradycardia
· Tachycardia
Correct answer
Retching and vomiting
Common cause of airway obstruction in an unconscious patient
0/1
· Oropharyngeal
tumor
· Laryngeal
cyst
· Obstruction
of foreign body
· Tongue
falling back
Correct answer
Tongue falling back
Although oxygen is essential for every cell in the body, the
body's need to rid itself of carbon dioxide is the most vital stimulus to
respiration in a healthy person (Marieb and Hoehn, 2010). Which medication
should the nurse anticipate the doctor to prescribe on a patient with
respiratory acidosis?
0/1
· Oxygen
therapy
· Bronchodilator
· Sodium
chloride
· Sodium
bicarbonate
Correct answer
Bronchodilator
A male patient for surgery in one hour is hyperventilating. What
should the nurse do first to reduce the risk of respiratory alkalosis?
1/1
· Teach the patient breathing techniques
· Have the
patient breathe into a paper bag
· Encourage
the patient to try to remain calm
· Position
the patient in a high-Fowler position
A nurse identifies clubbing when assessing a patient's hands. Which
conclusion can the nurse make concerning this observation?
0/1
· The patient
has liver disease
· The patient
has diabetes mellitus
· The patient
has a nutritional deficiency
· The patient
has a long-term oxygen deficit
Correct answer
The patient has a long-term oxygen deficit
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