Hypertensive Emergency with Microcytic Anemia and Acute Kidney Injury

Diagnostic Considerations

The International Society of Hypertension recommends screening for secondary hypertension in patients with early onset hypertension (<30 years), particularly in the absence of typical risk factors like obesity or family history 1
Severe microcytic anemia (MCV 62, RDW 19.6%) combined with hypertension raises concern for chronic kidney disease, renovascular hypertension, or chronic blood loss 1, 2
Elevated liver enzymes (SGPT 63, SGOT 51) may indicate systemic disease or medication effect 1
Mild LVH on echo indicates target organ damage, confirming chronicity 1

Renal imaging, such as kidney ultrasound, is recommended to assess for renal parenchymal disease, size discrepancy suggesting renovascular disease, or structural abnormalities 1
Renovascular disease screening, including duplex ultrasound of renal arteries, is recommended 1
Primary aldosteronism screening, including serum aldosterone-to-renin ratio, is recommended as it is the most common cause of secondary hypertension in young adults 1

The European Heart Journal recommends initial target blood pressure of <140/90 mmHg, with a long-term target of <130/80 mmHg given the patient's young age and evidence of target organ damage (LVH) 2
ACE inhibitor or ARB is recommended as the first-line medication, particularly given elevated creatinine suggesting renal involvement, LVH on echo, and young age 1, 2
Calcium channel blocker (amlodipine) is recommended as the second agent 2

Iron supplementation should be started empirically while awaiting iron studies, as microcytic anemia in a young male is iron deficiency until proven otherwise 2
Investigate source of iron loss, such as GI evaluation, if iron deficiency is confirmed 2
Recheck hemoglobin in 4 weeks to assess response 1

Recheck BP within 2-4 weeks after medication adjustment 2
Recheck creatinine and electrolytes in 1-2 weeks after starting ACE inhibitor/ARB 2
Complete secondary hypertension workup within 4 weeks 1
Refer to hypertension specialist if secondary cause identified or if BP remains uncontrolled despite three medications at optimal doses 1, 2