Intensive care nursing Flashcards
define critical care nursing
field of nursing focusing on care of critically ill patients
what are potential causes of life threatening illness?
surgery
illness
injury
list patients in need of critical CCN
CV unstable respiratory distress neurological disease multiple trauma systemic disease extensive wounds electrolyte imbalances sepsis neonates and adolescents
what is the aim of triage for critical patients?
quickly assess patient to determine order of treatment for patients
describe the steps of triage for critical patients
assess 3 MBS
if fail any of MBS assessments need immediate attention
usually takes place in reception with owner
what are the 3 MBS?
neurological
CV
respiratory
what should you make sure to communicate with owners of critical patients during triage?
introduce self and what you will do
ask patients temperament
if stable keep with owner, if not take for treatment and explain someone will be out soon to explain
what is assessed in the quick assessment of triaging critical patients?
HR pulse quality RR and effort bleeding pain mentation ambulation seizure signs MM CRT
what are considerations when monitoring critical patients?
tailor to individual
monitoring equipment can be unreliable
trends more important than results
when do patients need constant monitoring?
critical patients
patients likely to deteriorate
which patients should be monitored every 15-30 minutes?
GA recovery
starting blood transfusion
which patients should be monitored every 1-2 hours?
hypoglycaemic patients
if monitoring RR
when need medication
which patients are monitored every 4-6 hours?
stable patients but may deteriorate
which pulse points are used most for cats and dogs?
dogs- femoral and dorsal pedal
cats- femoral
how is pulse assessed?
feel rate and quality
listen for deficits as indicate arrhythmia
what is suggested by weak and thready, bounding or snappy pulses?
weak or thready- low systolic BP
bounding- sepsis
snappy- anaemia
what needs considering when assessing patients heart rates?
pain
stress
drugs
state normal heart rate for dogs large and small
60-100bpm- large
100-140bpm- small
state HR when tachycardic in dogs
over 140 bpm
state HR when bradycardic in dogs
less than 60bpm
state normal HR in cats
14-180bpm
state HR when tachycardic in cats
over 180-200bpm
state HR when bradycardic on cats
less than 120bpm
what are normal systolic, diastolic and MAP in dogs?
systolic- 110-160mmHg
diastolic- 55-110mmHg
MAP- 100mmHg
what are normal systolic, diastolic and MAP in cats?
systolic- 120-170mmHg
diastolic- 70-120mmHg
MAP- 130mmHg
what BP are classed as hypotensive?
less than 100mmHg systolic and 60mmHg MAP
what BP are classed as hypertensive?
over 170-200mmHg systolic and 120mmHd MAP
how do you respond to hypotension?
give IVFT bolus and vasopressors to cause vasoconstriction
how do you manage hypertension?
give antihypertensive drugs such as amlodipine
investigate cause
how does doppler measure BP?
sound waves detect arterial blood flow
how does oscillometric BP work?
machine reads BPs
what is the benefit of arterial BP measurement?
continuous monitoring of systolic, diastolic and MAP
what colour are normal MM?
pink
what do red/hyperaemic MM suggest?
sepsis
what colour are MM from CO toxicity?
bright red
what do white MM suggest?
anaemia
shock
what do cyanotic MM suggest?
hypoxia
hypoxaemia
what colour do MM go from paracetamol toxicity?
brown
what causes icteric MM?
liver disease
what causes petechia in MM?
coagulopathy
what do dry MM suggest?
dehydration
what is normal CRT?
1-2 seconds
define CRT
amount of time for colour to return to capillary bed after digital pressure applied
what is shown by CRT?
peripheral perfusion
what causes prolonged CRT?
shock
hypoperfusion
vasoconstriction
what causes rapid CRT?
sepsis
vasodilation
what is the purpose of ECG?
measure electrical activity of the heart
what conditions can make patients prone to cardiac arrhythmias?
GDV
sepsis
what are examples of heart abnormalities from auscultation?
murmurs
gallops
pulse deficits
state normal RR for dogs
18-36brpm
state normal RR for cats
20-30brpm
what is considered bradypnoeic?
less than 15brpm
what is considered tachypnoeic?
over 45-60brpm
what can cause bradypnoea?
drugs
hypocapnia
CNS disease
hypothermia
what can cause tachypnoea?
hypoxia hypercapnia pain hyperthermia pyrexia stress metabolic acidosis
define apnoea
absence of ventilatory effort
what can cause apnoea?
respiratory or cardiac arrest
drug overdose
neurological complications
what is seen for normal respiratory effort?
gentle chest movement
minimal abdominal movement
what signs indicate dyspnoea?
increased chest and abdominal muscle movement
orthopnoea
open mouth breathing
what can cause dyspnoea?
airway obstruction
pleural space disease
pulmonary parenchymal disease
upper airway disease
what are signs of reduced respiratory effort?
reduced chest and abdominal muscle movement
what is the danger of reduced respiratory effort?
high risk of cardiac and pulmonary arrest
what can cause reduced respiratory effort?
head injury
spinal cord injury
tetanus
end stage respiratory failure
define stridor
dry noise on breathing
define stertor
wet noise/snore on breathing