Deck 10: Statistics

Question 1

What is the mean for the following frequency distribution: 10, 15, 20, 25, 25?

A) 25
B) 10
C) 20
D) 19

Answer 1

19

Question 2

Primary data is originally reported or recorded by:

A) the Centers for Disease Control and Prevention
B) researchers at teaching hospitals
C) HIM employees reviewing the record
D) clinicians treating the patient

Answer 2

clinicians treating the patient

Question 3

Of 15000 discharges last year, Medicare was the primary payer for 6000 patients. Medicare made up what percentage of this hospital's payer mix?

A) 4%
B) 55%
C) 60%
D) 40%

Answer 3

40%

Question 4

Suppose there are six males in a class of 20 students. What term could be used to describe the comparison?

A) Ratio
B) Proportion
C) Percentage
D) Rate

Question 5

A federally mandated database collected on all inpatients discharged from a hospital is the:

A) MPI
B) UHDCS
C) UHDDS
D) UACDS

Question 6

Which statement below requests aggregate health information?

A) Request for report on all DRG 127 for the month of June
B) Request for patient information, MR# 02-34-65, DRG 127
C) Request for first case of CHF for the third quarter
D) Request for record of patient #197808, under the care of Dr. S. S. Schoner

Question 7

Given a request for the number of Medicare CHF cases for the month of April, how would you query the database to sort the report?

A) Patient gender
B) Patient age
C) Financial class
D) Diagnosis

Question 8

The patient abstract is an example of _______ data.

A) Demographic
B) Primary
C) Secondary
D) Tertiary

Question 9

Zak was admitted to the hospital on August 20 and discharged on October 6. The length of stay is _______ days.

A) 47
B) 48
C) 66
D) 67

Question 10

A sample is a small group within a:

A) Data set
B) Database
C) Aggregate group
D) Population

Question 11

Birth certificates, completed by the health care facility, are registered with the Department of:

A) Motor Vehicles
B) Live Births
C) Complete Statistics
D) Vital Records

Question 12

Review the graph. What is the lowest cancer prevalence rate in the United States for 2008?
Source: U.S. Cancer Statistics Working Group. United States Cancer Statistics: 1999-2008 Incidence and Mortality Web-based Report. Atlanta: U.S. Department of Health and Human Services, Centers for Disease Control and Prevention and National Cancer Institute, 2012.

A) Leukemias
B) Urinary bladder
C) Colon and rectum
D) Pancreas

Question 13

The following patients were discharged from pediatrics for the week 7/16/05-7/22/05:
The average length of stay of these patients is:

A) 6.5 days
B) 7 days
C) 7.2 days
D) 8 days

Question 14

Which statement best describes the patient abstract?

A) Patient database
B) Summary of the patient's stay
C) Summary of the patient's medical history
D) Patient demographics

Question 15

Review the following graph. Which race/ethnicity has the highest prevalence rate in the United States?

A) Male
B) Child
C) Hispanic
D) Black

Question 16

Richard S. was admitted to the hospital on September 13 and discharged on September 30. The length of stay is ______ days.

A) 13
B) 17
C) 18
D) 30

Question 17

Which of the following graphs would best illustrate the following information: of the 440 discharges for the month of June, 340 were Medicare, 60 were Medicaid, 20 were insurance, and 20 were self pay?

A) Pie chart
B) Line chart
C) Brainstorming
D) Decision matrix

Question 18

Suppose that you want to display the number of deaths due to prostate cancer for the years 2000 through 2009. What graphic technique would you choose?

A) Line graph
B) Histogram
C) Pie chart
D) Bar chart

Question 19

Review the following graph. What is the incidence of acute hepatitis A rate trend from 2000 to 2010 among all age groups?

A) Downward
B) Upward
C) Horizontal
D) Vertical

Question 20

The CEO requests information on the number of arthroscopies performed annually. What information should be requested from the database to be included on the report so that individual cases can be reviewed, if necessary?

A) Patient name only
B) Patient name, MR#, ICD-10-CM procedure code, discharge date, surgeon
C) Patient name, procedure description, surgery date
D) Surgeon

Question 21

The blood pressure of patients discharged in June 2011 with a diagnosis of hypertension was reviewed. The 36 samples are below. The diastolic pressures (in mm Hg) were as follows:
88 98 78 84 77 81 90 82 75 72 100 92
85 92 77 84 77 82 92 87 74 80 95 90
87 80 83 77 86 80 88 90 79 82 93 88
What is the mode?

A) 77
B) 85
C) 28
D) 100

Question 22

Compute the length of stay for the following patient: Admitted 5/25/2012
Discharged 5/25/2012

A) 0 days
B) 1 day
C) Cannot be determined
D) None of the above

Question 23

Data for June 2011: Bed count 50
Admissions 140
Discharges 143
IP service days 1203
Discharge days 1001
Calculate the average length of stay for June 2011.

A) 1.5 days
B) 2.3 days
C) 8.2 days
D) 0.67 days

Question 24

The subjective portion of SOAP progress notes is ________________ data. It is also information obtained by a caregiver after observation of the patient.

Question 25

On May 12, the midnight census is 80. However, four patients were admitted and discharged that same day. The hospital has a 92 bed count. Calculate the bed occupancy rate.

A) 15%
B) 13%
C) 87%
D) 1.15%

Question 26

Another name for a data illustration is a ________________.

Question 27

A frequency distribution organizes data into groups called ________________.

Question 28

Diagnosis, physician, or procedure ________________ are used to organize and retrieve specific data from the HIM database.

Question 29

Named and identifiable pieces of data that can be queried and reported in a meaningful way are called ________________.

Question 30

as the way in which a variance of values behaves over time is called a _________________.

Question 31

A report of a group of patients including their age is an example of ____________ data.

Question 32

Which unit of measure is used to indicate the services received by one inpatient in a 24-hour period?

A) Inpatient service day
B) Volume of services
C) Bed count
D) Length of stay

Question 33

In May, 280 women were admitted to the Obstetrics service. Of these, 262 women delivered vaginally; 18 deliveries were by C-section. What is the denominator for calculating the C-section rate?

A) 280
B) 18
C) 262 + 18
D) 262

Question 34

Suppose that three patients stayed in the hospital for a total of 18 days. Which term would be used to describe the result of the calculation 18 ÷ 3?

A) Total length of stay
B) Average patient census
C) Average bed count
D) Average length of stay

Question 35

What rate is used to indicate the percentage of the hospital's beds occupied by inpatients for a given time period?

A) Percent occupancy
B) Total length of stay
C) Inpatient bed occupancy rate
D) Both a and c

Question 36

The blood pressure of patients discharged in June 2011 with a diagnosis of hypertension was reviewed. The 36 samples are below. The diastolic pressures (in mm Hg) were as follows:
88 98 78 84 77 81 90 82 75 72 100 92
85 92 77 84 77 82 92 88 74 80 95 90
87 80 83 77 86 80 88 90 79 82 93 88
What is the mean?

A) 84.7
B) 87.9
C) 86.2
D) 82.1

Question 37

The number of patients present in the health care facility, counted at the same time each day, is called the ______________.

Question 38

An ___________ is a summary of the patient record.

Question 39

The inpatient census at 12:01 AM is 62. Two patients were admitted at 8 AM; one died at 7:30 PM and the other was discharged at 8:15 PM. Calculate the inpatient service day.

A) 62
B) 64
C) 63
D) 65

Question 40

_______________ is a method of sampling a population so that all cases have an equal chance of being selected.

Question 41

Use the data below to calculate the length of stay for each patient. Assume that the dates are in the same year and that it is not a leap year.

The length of stay for Patient C is _______________.

Question 42

An organization of data elements in rows and columns is called a _______________.

Question 43

The inpatient census at 11:59 PM, May 20, was 95. One patient was admitted May 21 around 6:00 AM and discharged around 7:00 PM on the same day. Two patients were admitted at noon that day; one died at 5:00 PM that same afternoon while the other patient was transferred to a nursing home around 2:30 PM. What is the daily inpatient census for May 21?

Question 44

A database of specific cancer or trauma information is an example of a ____________.

Question 45

Use the data below to calculate the length of stay for each patient. Assume that the dates are in the same year and that it is not a leap year.

The length of stay for Patient E is _______________.

Question 46

A value in a sample or population much higher or lower than the average is called an _______________.

Question 47

To study only the female students registered for this class is to examine a _____________ of the population.

Question 48

Use the data below to calculate the length of stay for each patient. Assume that the dates are in the same year and that it is not a leap year.

The length of stay for Patient A is _______________.

Question 49

Use the data below to calculate the length of stay for each patient. Assume that the dates are in the same year and that it is not a leap year.

The length of stay for Patient G is _______________.

Question 50

The diagnosis index may be ____________ to remove patient identifiers.

Question 51

When the clerk requests a report from a computer system, he or she is said to _________ the database.

Question 52

Use the data below to calculate the length of stay for each patient. Assume that the dates are in the same year and that it is not a leap year.

The length of stay for Patient F is _______________.

Question 53

Frequency distributions that are not symmetrical are ______________ .

Question 54

Use the data below to calculate the length of stay for each patient. Assume that the dates are in the same year and that it is not a leap year.

The length of stay for Patient D is _______________.

Question 55

Use the data below to calculate the length of stay for each patient. Assume that the dates are in the same year and that it is not a leap year.

The length of stay for Patient H is _______________.

Question 56

Calculate the average length of stay for the following patients who were discharged on July 14.

Question 57

Below are the lengths of stay for the following patients who were discharged on July 14. This is an acute care facility. Does the ALOS reflect an acute care facility's typical patient length of stay? Why or why not?

Question 58

A measure of variance called the ______________ shows how closely the observations are distributed around the mean.

Question 59

The result of a query is also known as a _____________.

Question 60

Use the data below to calculate the length of stay for each patient. Assume that the dates are in the same year and that it is not a leap year.

The length of stay for Patient B is _______________.

Question 61

Margaret Lorraine was admitted to the hospital on March 17 and discharged on April 5. What is her length of stay?

Question 62

Use the table below to compute the answers for the following questions.

Compute the average length of stay (ALOS) (A&C).

Question 63

Use the table below to compute the answers for the following questions.

Compute the bed occupancy rate (A&C).

Question 64

Explain the mean, median, and mode.

Question 65

Describe circumstances in which a department in the health care organization may request health information or statistics.

Question 66

Use the table below to compute the answers for the following questions.

Compute the nosocomial infection rate (A&C).

Question 67

Identify information that must be reported by a health care facility to the Department of Vital Statistics.

Question 68

The health information management professional uses the database created by the patient abstracts to query for reports. Can you explain and give an example of how this function operates?

Question 69

In 2012, Comfort Community Hospital had 150 beds from January 1 through June 30. On July 1, the hospital increased its beds to 250 and the number remained at 250 through December 31. During the first 6 months, 27,912 inpatient days of service (IPSDs) were provided. During the last 6 months, 35,967 days of service were provided. What is the average daily census for the first 6 months in a non-leap year? The last 6 months? The whole year?

Question 70

Comfort Community Hospital records the following figures for June 1:
Admissions: 8
Discharges: 2
DOA: 2
If the count of the last census was 57, what is the census for June 1?

Question 71

Explain the difference between a population and a sample.

Question 72

Explain the difference between aggregate and patient-specific data.