10 free CCHT practice questions in the real exam format, covering the official content areas, with an explanation for every answer.
CCHT Practice Test 10Tutor mode
Question 1 of 10
Technical
A 59-year-old man has received in-center hemodialysis for 3 years on a Tuesday-Thursday-Saturday schedule. He dialyzes through a left upper-arm AV graft at a blood flow rate of 400 mL/min; his target weight is 187 lb (85 kg).
Tuesday pressure log
Time
Venous pressure, mm Hg
Arterial pressure, mm Hg
TMP, mm Hg
0800
160
−180
120
0830
190
−180
150
0900
240
−180
210
0915
280
−185
260
During Tuesday's treatment, venous pressure and TMP rise as the log shows. The venous drip chamber looks dark and firm, and the graft is not swollen. The technician should *first*