Investigations

Question 1

Dizziness

Answer 1

• Electrocardiogram (ECG)
• Complete Blood Count (CBC): Check for anemia or infection.
• Electrolytes: Including potassium, sodium, calcium, and magnesium.
• Renal Function Tests
• Liver Function Tests
• Cardiac Enzymes
• Blood Glucose
• Thyroid Function Tests
• Cortisol
• Blood Pressure Monitoring: Both arms, different positions (lying, sitting, standing).
• Urine Analysis: Check for signs of infection or renal pathology.
• Echocardiogram
• CT Head
• Holter Monitor or Event Monitor
• Toxicology

Question 2

PE

Answer 2

• ABGs
• Chest X-ray
• 2-D Echocardiography (POCUS)
• Serial ECGs
• Biomarkers: Troponin-I (cTn), D-dimer, BNP or NT-proBNP
• CTPA
• V/Q scintigraphy

Question 3

Suspected methanol toxicity

Answer 3

• Blood sugar
• Complete Blood Count (CBC)
• Comprehensive Metabolic Panel
• Liver Function Tests
• Coagulation Profile
• Blood Alcohol Level
• Urine Toxicology Screen
• CT brain
• Serum Osmolality and Anion Gap
• Arterial Blood Gas (ABG)
• Lipase
• Cardiac Enzymes
• Thyroid Function Tests
• Vitamin B12 and Folate Levels
• Blood Cultures (if infection suspected)
• Serum Ammonia
• Urinalysis