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EARLY DRAFT
11.4.1 The Three Aspects
of Treatment
The treatment options in management of
any acid-base disorder can be divided into 3 aspects:
- Treating the CAUSE
- Treating the ACID-BASE ABNORMALITY (the pH)
- Treating the COMPLICATIONS
Some
examples are outlined in the table.
Classification of
Treatments in Acid-Base Disorders |
Treating
the Cause |
- Insulin infusion in diabetic
ketoacidosis
- Administration of oxygen
& restoration of cardiac output in type A lactic
acidosis
- Specific treatments for
respiratory failure (eg antibiotics, bronchodilators,
streptokinase)
- Psychological management for
anxiety-hyperventilation syndrome
- Dantrolene for malignant
hyperthermia
- Repair the deficit responsible for
maintenance of a metabolic alkalosis (eg saline loading,
administration of K+)
|
Treating
the Acid-Base Abnormality |
- Indirectly by treating the cause
- Administration of sodium
bicarbonate (to restore pH in metabolic acidosis)
- Intubation & ventilation
for respiratory failure (to correct arterial pCO2
& pH)
|
Treating
the Complications |
- Indirectly by treating the cause
- Indirectly by treating the acid-base
abnormality
- Administration of K+ for
hypokalaemia
- Use of insulin-glucose treatment for
hyperkalaemia
-
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11.4.2
Treating
the Cause Often best approach as ultimately
resolves the problem
Treatment depends on the cause so there is a great requirement for an
accurate diagnosis
Often slow return to normal & may be too slow or inappropriate way
to treat some complications
Includes aspects of prevention (eg patient education, insulin for
diabetics) 11.4.3
Treating the Acid-Base Abnormality Metabolic
disorders:
Traditional approach has been to give NaHCO3 in metabolic acidosis with
little or no evidence of efficacy
Other burffers used eg THAM Respiratory
disorders:
Usefulness of ventilation to correct pH (via pCO2)
Adverse problems due to pCO2 can be corrected 11.4.4
Treating the Complications
May be life-threatening requiring
emergency management (eg K+, CBF & ICP)
Includes treating the complications of treatment!! (such as bicarbonate
problems, problems with lines) 11.4.5
Treatment Controversies & Conflicts To
be added 11.4.6
Trips & Traps To be added
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