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Table 4 Hyperkalemia retesting

From: Epidemiology and health outcomes associated with hyperkalemia in a primary care setting in England

  Overall (N = 194,035) Serum K+ level during index HK event, mmol/L
5.0 to ≤ 5.5 (n = 177,945)a > 5.5 to ≤ 6.0 (n = 14,020) > 6.0 (n = 2070)b
Patients who had retest within 14 days, n (%) 11,342 (5.8) 6922 (3.9) 3276 (23.4) 1144 (55.3)
 Patients with HK after retest 3632 (32.0) 2045 (29.5) 1166 (35.6) 421 (36.8)
  5.0 to ≤ 5.5 mmol/La 1782 (87.1) 876 (75.1) 242 (57.5)
   > 5.5 to ≤ 6.0 mmol/L 228 (11.1) 249 (21.4) 98 (23.3)
   > 6.0 mmol/Lb 35 (1.7) 41 (3.5) 81 (19.2)
  1. aOr Clinical Practice Research Datalink diagnosis code in the absence of laboratory results
  2. bOr Hospital Episode Statistics diagnosis code, regardless of serum K+ level
  3. HK hyperkalemia, K+ potassium