Respiratory System Flashcards
ABG arterial blood Gas
ABG is a blood test that measures the acidity,pH ,the levels of oxygen ,and carbon dioxide in the blood.
What does the main elements which help in interpreting a ABG
PH,Hco3 (bicarbonate), and PCO2 (partial pressure of carbon dioxide ),
CO2 is considered as the “acid” part as it is the gas from the carbonic acid (Respiratory)
Bicarb is considered as the “base”/ alkaline metabolic
What is the normal values of ABG
PH normal value= 7.35to7.45, less than PH7.35Acidosis orPH more than 7.45 Alkalosis.
Hco3 normal value =22 to 28, less than 22 Acidosis or 28 more than Alkalosis
Pco2 normal value 35to45,less than 35Alkalosis or 45more than that Acidosis.
How to find out acidosis or alkalosis
Client who has late -stage salicylate poisoning-metabolic Acidosis (acetylsalicylic acid).
DKA(diabetic keto acidosis)-Metabolic acidosis.
peptic ulcer disease (PUD): with excessive amounts of oral antacids-metabolic alkalosis (antacid-reduce acid – alkalosis)
diarrhea or ileostomy-metabolic acidosis,(intestinal secretions, pancreatic secretions are high in bicarbonate-alkali. So loss of alkali leading to acidosis.
panic attack -respiratory alkalosis (blow out co2)
Drugs addicts/sedated /pneumothorax/hemothorax- respiratory acidosis (shallow breathing, holding on to CO2)
compensation
Compensation is the renal and respiratory adjustments to changes in PH.If Ph is normal, the body is compensated.
Respiratory system compensate by adjusting CO2 level by changing ventilation(RR)
the renal system compensate by adjusting bicarbonate, producing more acidic or alkaline urine
Different types of compensation
If PH is normal and be a PaCO2 and HCO3 are both abnormal, then the patient is compensated
If all three values PH,PaCO2, Hco3 are abnormal, then the patient is partially compensated.
If pH is abnormal is a PaCO2 or Hco3 are normal , the patient is uncompensated.
Hypoxia – less oxygen in the body
Early findings: tachypnea,
tachycardia,
restlessness, pale skin and mucous membranes,
elevated blood pressure,
symptoms of respiratory distress, (use of accessory muscles, nasal flaring, tracheal tugging,and adventitious lung sounds).
Hypoxia oxygen less in the body late findings
 late findings:confusion and stupor
cyanotic skin and mucous membranes,
bradypnea, bradycardia,
hypotension, cardiac dysrhythmias.
Sinusitis
Sinusitis is an inflammation of the mucus membrane of one or more of the sinuses, usually the maxillary or frontal sinus.
S/symptoms facial pressure and pain (worse when the head is tilted forward)
Nasal congestion, headache,cough, bloody or purulent nasal drainage,
tenderness to palpation, of forehead, orbital and facial areas, low-grade fever.
They sinusitis diagnostic procedures
CT scan or sinus x-rays
nursing care: increase the use of steam humidification,
sinus irrigation, Saline nasal sprays, hot and wet backs to relieve sinus congestion and pain,
teach the client to increase fluid intake and rest. discourage-air travel , swimming and diving. Encourage cessation of tobacco use in any form.
instruct the client and correct technique for sinus irrigation and self administration of nasal sprays.
influenza
Highly contagious acute viral infection. Example H1 N1 (swine flu), and H5N1 (avian flu),
preventable by vaccine
S/symptom:severe headache and muscle aches , fatigue, weakness, hypoxia, severe diarrhea and cough (avian flu)
influenza: nursing care 
maintain airborne and contact precautions for hospitalized clients with the pandemic influenza. Provide saline gargles. Monitor hydration status, intake and output,
administer fluid therapy as prescribed by the provider .
Monitor respiratory status and complications
Pneumonia
Pneumonia: inflammatory process: produce excessive fluids. Infection or inflammation the air sac is filled with fluids or pus.
triggered by infectious organisms or by the aspiration of an irritant, such as fluid or a foreign object.
Immobility is a contributing factor in the development of pneumonia.
Two types of pneumonia
Community acquired pneumoniaCAP): is the most common type and often occurs as a complication of influenza
Health care-associated pneumonia(HAP) has a higher mortality rate and is more likely to be resistant to antibiotics.
(VAP) ventilator associated pneumonia VAPclinicalmanifestations:purulent- sputum,positive sputum culture.
Leukocytes (12,000 MM3), fever (>100.4 f), chest x-ray changes infiltrates
 pneumonia laboratory tests 
Sputum culture and sensitivity
obtain specimen before starting antibiotic therapy.
Obtain specimen by suctioning if the client is unable to cough.
The responsible organism is the identified about 50% of the time.
CBC - elevated WBC count (may not be present in older adult clients)
ABGs-hypoxemia (decrease the Pa02 less than 80 MM of Hg)
blood culture-to rule out organism in the blood
serum electrolytes to identify causes of dehydration.