Table 4.

(a) Order set items with the highest additional a la carte ordering rates, excluding uncommon order sets used fewer than 100 times (these are items that clinicians frequently needed at the time of order set use, but were not included in the order set build), and (b) order set items with the highest a la carte to order set ordering ratios, excluding order sets used fewer than 100 times (these are items included in order sets, but were frequently skipped over by clinicians and instead more likely to instead be ordered a la carte right after order set use)

(a) Additional a la carte items
Order set	Additional a la carte item	A la carte order count	A la carte ordering rate (%)
Kidney/pancreas transplant rejection	Diphenhydramine PO	35	28
Pneumonia	CBC without differential	49	26
Pneumonia	Basic metabolic panel	44	23
Hospice admission	Metoclopramide IV	24	22
ICU VAD post op	Lactate (whole blood)	350	22
Bronchoscopy	Cytology	493	22
Lumbar puncture	Cytology	41	21
Pneumonia	Ondansetron IV	38	20
COPD	Ondansetron IV	43	20
Nephrectomy post op	Ionised calcium	57	17

(b) Order set items commonly ordered a la carte
Order set	Order set item	A la carte ordering rate (%)	Order set ordering rate (%)	A la carte/order set ordering rate ratio
Joint replacement	Hydromorphone IV	6	0.006	1040
Interventional radiology post op	Glucose by metre	31	0.04	827
Tube feeding	Glucose by metre	65	0.3	250
Medicine admit	Ciprofloxacin IV	0.3	0.001	242
Neurosurgery admit	Spine X-ray	2	0.009	232
Electrolyte replacement	Magnesium IV	1	0.007	194
PACU	Hydromorphone IV	0.6	0.003	202
Neurosurgery admit	Diphenhydramine PO	2	0.01	194
Gynaecology post op	Lactated Ringer’s IV bolus	17	0.1	171
Medicine admit	Levofloxacin PO	0.2	0.006	140

Only items with significant ordering ratios at a Bonferroni-corrected threshold of p<2.5×10⁻⁵ are included.

CBC, complete blood count; COPD, chronic obstructive pulmonary disease; ICU, intensive care unit; IV, intravenous; PACU, post anaesthesia care unit; PO, by mouth; VAD, ventricular assist device.