General Assessment and management Flashcards
Apyrexial/afebrile definition
35-37C
Hyperthermia/pyrexia/febrile definition
> 37.5C
Hypothermia definition
<35C
Hyper pyrexia definition
> 41C
Temperature is regulated by the …
Autonomic nervous system from the hypothalamus
What are the max and min temps and what can each result in
Max >41C result in convulsions
Min <32C result in cardiac arrhythmias
What direction does pyrexia shift the oxygen dissociation curve? And why does this occur?
To the right. As increased temperature results in a higher oxygen demand due to the increase in metabolic activity. This causes haemoglobin to have a lower affinity for oxygen meaning more oxygen is unloaded at the tissue cells.
What direction does hypothermia cause the oxygen dissociation curve to shift to? And why does this occur?
Shift to the left. Cells are less metabolically active. Haemoglobin has a higher affinity for oxygen.
Symptoms of pyrexia. Why they occur.
>37.5C sweating shivering feeling cold high HR high RR Due to increase cellular metabolism
Normal urine output
0.5-1ml/kg/hr.
UO usually = to input with a degree of insensible loss.
Oliguria definition
UO <0.5ml/kg/hr = <30ml/hr
Positive fluid balance means
Fluid intake > fluid output
Negative fluid balance means
Fluid output > fluid input
Anuria definition
No urine output or a UO <100ml/24hrs
What does NEWS stand for
National Early Warning Score
How fast should NaCl 0.9% be administered?
1L/hr
What are factors that may lead to the insertion of an NG tube?
Reduced oral intake
Diarrhoea
Vomiting
What are risk factors associated with having an NG tube present?
Feed going into lung
Chocking
Perforation of the oesophagus
What are the clinical signs and symptoms of a critically ill adult despite the cause
Tachypnoea Reduced arterial BP Tachycardia Hypotension Reduced/ fluctuating GCS Reduced urine output
What are the 5 stages of the ABCDE approach?
- Initial assessment
- Treat life threatening problems
- Regular reassessment
- Assess the effects of treatments/interventions
- Escalate/refer if necessary
What does diuresis mean?
Increased or excessive urine production
What three factors should be taken into account when prescribing opioids such as morphine?
Patients: age, body mass and pain response.
Which low values on two blood related tests would indicate blood loss?
Low haemoglobin and haematocrit
How many mls per degree of elevated temperature should fluid resuscitation be increased by?
500mls.