DAILY BMP ORDERINGBUSINESS OF MEDICINECOST CONSCIOUS CARE PROJECT

ALLEN CHANG, PGY2

5/18/15

Objectives

Identify appropriate usage of BMP Evaluate UCI Medicine Ward teams

on usage of daily BMP and determining how often residents over-order BMP.

Educate residents on the harmful effects of obtaining too many laboratory tests

Encourage UCI residents to obtain BMPs when indicated to prevent extraneous costs

Indications for BMP

Initial monitoring of electrolytes and renal function.

Trending electrolyte abnormalities Medications that may alter electrolytes

or cause renal dysfunction

Background

BMPs are routinely ordered at UCI – is it always necessary?

BMPs are rather costly to patients as each test is 22 dollars and can lead to physical pain, iatrogenic anemia, or infection with each blood draw

Study Design

10 patients admitted to UCI Internal Medicine ward service from 4/28/15 to 5/18/15 were selected in a cross-sectional study

Number of BMPs ordered per patient and reason for ordering the BMP was evaluated.

Results

In the 10 patients reviewed, there were 90 total hospital days. Total number of BMPs ordered was 110.

Daily BMPs were ordered on ALL patients

Total BMP to patient ratio was 1.22.

Results

Pt Dx HD # of BMPs

AKI (HD wnl)

Electrolytes Abnormal

Vanco Other Nephrotoxins

Why Extra BMPs? Through Chart Review

1 Sepsis 2/2 UTI , UGIB

7 7 Yes (3) Yes (2) No No Daily monitoring

2 Neck Abscess

9 10 No No Yes Yes Monitor Cr while on Vancomycin

3 R fibular fracture

7 7 Yes (2) Yes (2) No No Daily monitoring

4 PNA 7 7 No No Yes Yes Monitor Cr while on Vancomycin

5 R femur fracture

10 11 No Yes (3) No No One episode of Hyperkalemia on HD2 and daily monitoring

Results

Pt Dx HD # of BMPs

AKI (HD wnl)

Electrolytes Abnormal

Vanco Other Nephrotoxins

Why Extra BMPs? Through Chart Review

6 PBC 7 11 No No No Yes (ACE inhibitors)

CMP monitoring

7 Ascending Cholangitis

11 17 No No No No CMP monitoring

8 Empyema

21 25 Yes Yes Yes Yes Vancomycin

9 COPD 4 4 No Yes (3) No No Daily monitoring

10 PNA 7 11 Yes (5) Yes (4) No No Elevated Glucose while in house lead to extra BMPs ordered on HD2-3

Discussion

Basic Metabolic Panel $22 Liver Function Test $21 Comprehensive Metabolic Panel $27

22 Extraneous BMPs ordered, leading to $484 spent in 90 hospital days, NOT including physician interpretation fee.

Discussion

Observations: Patients with any type of laboratory

abnormality appear to have daily electrolyte monitoring, even after abnormalities have resolved.

Vancomycin leads to daily BMP monitoring.

Monitoring LFTs with CMP appears to confound the data as the BMP is normal while LFTs are abnormal.

Discussion Daily BMP ordering continues to remain an area to

improve in cost effectiveness.

2 patients had more BMPs ordered for acute electrolyte abnormalities which were promptly treated.

3 patients had daily BMPs for monitoring electrolytes as they had abnormalities on admission which subsequently improved and 2 patients had daily CMPs ordered when electrolytes and renal function were normal, leading to 22 extra daily BMPs

3 patients had daily BMPs ordered while on Vancomycin. What are the guidelines for Creatinine monitoring for Vancomycin usage?

Areas for Improvement

Think about the hospital bill the patient may have. Although the laboratory test for CMP is $27, the cost for physician interpretation will increase the patients bill to $1000.

No indications for daily BMP if Vanco levels are within range. Literature search revealed weak guidelines that Cr should be monitored for the first few days until Vanco trough is normal at least 2x and then BMP may be ordered weekly or if the trough is too high.