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Table 2 Hemodynamics before, during and after 0.9% NaCl 10 mL/kg fluid bolus

From: The physiologic responses to a fluid bolus administration in old and young healthy adults

  Time Baseline Pre-Bolus Post-Bolus Study End
  M ± SEM M ± SEM M ± SEM M ± SEM
Mean Arterial Pressure (mmHg) Younger 82 ± 3 83 ± 2 83 ± 3 80 ± 2
Older 90 ± 2 90 ± 2 87 ± 3 92 ± 4
Heart Rate (bpm) Younger 66 ± 3 63 ± 2 65 ± 1 64 ± 3
Older 66 ± 4 61 ± 4 67 ± 3 62 ± 3
Cardiac Output (L/min) Younger 5.3 ± 0.2 5.2 ± 0.1 6.3 ± 0.3 5.4 ± 0.2
Older 5.5 ± 0.3 5.1 ± 0.3 6.5 ± 0.3 5.3 ± 0.3
Systemic Vascular Resistance (dyne*sec/cm.5) Younger 1246 ± 57 1265 ± 34 1062 ± 48 1195 ± 28
Older 1348 ± 73 1445 ± 77 1079 ± 51 1404 ± 83
  1. M Mean, SEM Standard error of the mean, bpm – beats per minute, sec second, min minute, L liter, cm centimeter, dyn dyne
  2. Baseline – 30 min before fluid bolus, pre-bolus – immediately before fluid bolus, post-bolus – immediately after fluid bolus, study end – 120 min after start of fluid bolus