Description

A modification of the original TISS was developed for patients in non-ICU settings such as intermediate ("step-down") and regular nursing units. This can be used both to quantitate the severity of patient illness and to measure the nursing workload.


Items relative to original TISS:

(1) retained, with same point score (49)

(2) retained, but reweighted (10)

(3) new (26)

(4) deleted (18)

 

Scoring: Points are scored if the modality was used within the previous 24 hours, except for a new tracheostomy or acute digitalization (48 hours).

 

Patient Care and Monitoring

Intervention

Type

Points

vital signs every shift [1]

new

1

vital signs every 2-4 hours [1]

new

2

vital signs hourly or procedure checks [1]

reweighted

3

intake and output every 24 hours [2]

retained

1

intake and output every 6-8 hours [2]

retained

3

pulse volume recorder, Doppler

new

2

pulse oximetry

new

2

Glasgow Coma Scale every 4 hours [3]

new

2

Glasgow Coma Scale every 1-2 hours [3]

new

4

central venous pressure

retained

2

EKG monitoring or telemetry

reweighted

2

unscheduled 12 lead EKG

new

2

serial EKG or isoenzymes

new

3

multiple STAT specimens (more than 1 per shift)

retained

3

sputum, wound or other cultures [6]

new

1

initial "PAN" cultures, including blood [6]

new

4

 

 

Procedures

Intervention

Type

Points

simple dressing changes [4]

retained

1

multiple dressing changes [4]

retained

2

simple orthopedic therapy or cast care [5]

retained

1

complicated orthopedic therapy or special care beds [5]

retained

3

Foley catheter

retained

1

drainage tube(s)

new

1

nasogastric and/or gastric tubes

retained

1

hemodialysis [7]

retained

2

hemodialysis, initial  [7]

retained

4

peritoneal dialysis chronic [7]

new

3

peritoneal dialysis, initial [7]

retained

4

chest tubes

reweighted

2

arterial catheter

retained

3

hypo or hyperthermia blanket

retained

3

emergency bronchoscopy or endoscopy

retained

4

emergency surgery within 24 hours

retained

4

lavage for acute GI bleed

retained

4

isolation

new

4

4 point restraints

new

4

emergency thora, para, peri or cardiocentesis

reweighted

4

arterial sheath

new

4

 

 

Infusions and Medications

Intervention

Type

Points

one IV catheter [8]

retained

1

2 IV catheters [8]

retained

2

anticoagulation, oral

retained

1

anticoagulation, IV (heparin, etc.)

retained

3

IV medications, scheduled

retained

1

IV medications, unscheduled

retained

3

IV antibiotic, 1 [9]

retained

1

IV antibiotic, > 1 [9]

reweighted

2

intralipid/peripheral hyperalimentation [10]

retained

1

GI feedings [10]

retained

2

hyperalimentation by central catheter [10]

retained

3

epidural infusion

new

2

continuous IV sedation, patient controlled anesthesia

new

2

IV aminophylline/theophylline

new

2

IV chemotherapy

retained

2

IV diuresis [11]

retained

3

oral diuresis or change in oral diuretic therapy [11]

retained

3

replacement of excess fluid loss

retained

2

diabetic management (glucose monitoring with sliding scale insulin administration)

new

3

acute treatment of seizures or encephalopathy

retained

3

digitalization within 48 hours

retained

3

continuous antiarrhythmia infusion

retained

3

vasoactive drug infusion, 1 [12]

retained

3

vasoactive drug infusion, > 1 [12]

retained

4

blood products, frequent infusion (3 units within 24 hours)

retained

3

pressure activated blood infusion

retained

4

platelet infusion

retained

4

tissue plasminogen activation streptokinase/urokinase infusion

retained

4

concentrated potassium chloride infusion (40 mEq/dL)

retained

3

 

 

Cardiac Support

Intervention

Type

Points

pneumatic boots

new

1

chronic implanted pacemaker [13]

reweighted

2

temporary A/V pacing [13]

retained

4

cardiac pacer implanted within 24 hours [13]

new

4

chronic implanted automatic internal cardiac defibrillator [14]

new

3

automatic internal cardiac defibrillator [14]

new

4

cardioversion

reweighted

4

cardiac arrest within 24 hours

retained

4

 

 

Respiratory Support

Intervention

Type

Points

tracheostomy care [15]

retained

1

fresh tracheostomy within 48 hours [15]

reweighted

3

minitracheostomy [15]

new

2

intubation [15]

retained

3

incentive spirometry

new

1

formal chest physiology

reweighted

2

endotracheal suctioning more than 2 times every 6-8 hours [16]

new

1

blind endotracheal suctioning [16]

retained

3

oxygen by mask or cannula [17]

reweighted

2

spontaneous respiration via tracheostomy mask or T-piece [17]

retained

2

continuous positive airway pressure (CPAP) [17]

retained

3

mechanical ventilation [17]

retained

4

 

where:

• separation into subgroups is not in the original table, which merely separated interventions by point scores (Table 2, page 1409, Cullen et al, 1994)

• items in brackets "[ ]" appear to be mutually exclusive (my choice)

• I am not sure what an "arterial sheath" refers to

• formal chest "physiology" may refer to physiotherapy (as in original TISS)

 

Deleted items from original TISS (18):

• controlled ventilation with intermittent or continuous muscle relaxants

• balloon tamponade of varices

• pulmonary artery catheter

• induced hypothermia

• G suit

• intracranial pressure monitoring

• intra-aortic balloon assist

• intermittent mandatory ventilation or assisted ventilation

• measurement of cardiac output by any means

• active therapy of metabolic alkalosis

• active therapy of metabolic acidosis

• phlebotomy for volume overload

• coverage with > 2 IV antibiotics

• hourly neuro vital signs

• vasopressin infusion

• decubitus ulcer

• STAT blood tests (weighted 1 point; 3 point intervention retained)

• extensive irrigation, packings or debridement of wounds, fistula or colostomy

 

intermediate TISS =

= SUM [ therapeutic interventions being used]

 

The intermediate TISS results in the test patients showed good correlation with the original TISS results, with a linear relation.

 

intermediate TISS =

= 4.4 + (1.4 * (original TISS))

 

This can be rearranged:

 

original TISS =

= ((intermediate TISS) - 4.4) / 1.4


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