An 86-year-old woman is brought to ED by relatives because she has become confused over several days. She is usually cognitively normal and lives independently.
Background history includes hypertension, GORD, mild COPD, mild cardiomegaly and congestive cardiac failure. Her medications are atorvastatin, propranolol, ezetimibe, fluticasone/vilanterol, pantoprazole and verapamil SR.
She looks mildly dehydrated and confused. Observations: HR 26/min, BP 105/55 mmHg, temperature 37 C, GCS 15 and SpO2 97% on air. The ECG and initial venous blood gas are shown.
| Parameter |
Result |
Reference range |
| pH |
7.28 |
7.35-7.45 |
| pO2 |
51 mmHg |
– |
| pCO2 |
19 mmHg |
41-51 |
| Bicarbonate |
16 mmol/L |
22-26 |
| Base excess |
-8.0 |
-2 to +2 |
| Sodium |
136 mmol/L |
135-145 |
| Potassium |
6.7 mmol/L |
3.5-5.5 |
| Creatinine |
200 micromol/L |
62-106 |
| Glucose |
5.2 mmol/L |
2-8 |
| Lactate |
3.7 mmol/L |
0.5-2 |
12-lead ECG.
Describe the ECG.
(Marked out of 3.0)
/ 3
Briefly explain the likely pathophysiological process causing this presentation.
(Marked out of 4.0)
/ 4
Outline four important clinical issues and the concurrent treatments that should be undertaken.
(Marked out of 8.0)
/ 8
Total Score: 0 / 15
Percentage: 0%
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