Question 1

The population of one community is 1,000 nondiseased subjects. Over the next 5 years 135 patients will develop coronary artery disease. Calculate the prevalence of the disease.

Accepted Answer

135 / 1000 x 100 = 13.5%

Question 2

Which is the best definition of mortality rate?

Accepted Answer

The mortality rate is defined as the measure of the number of deaths in a given population, scaled to the size of that population, per unit of time. It is typically expressed per 1,000, 10,000, or 100,000 individuals, making option D the best definition.

Question 3

Willow Hospital has 16 deaths and 830 discharges for the month of October. What is the rate?

Accepted Answer

Rationale:16 x 100 / 830 x 100 = 1.93%

Question 4

Sebastian Medical Center reported 985 surgeries from January to March 31, of those 985 patients who were operated on, 14 died within 10 days postop. What is the postoperative mortality rate?

Accepted Answer

14 / 985 x 100 = 1.42%

Question 5

For the month of November Ocean View Hospital had 485 discharges, which included 16 deaths. Of those deaths, 6 occurred less than 48 hours after admission. Calculate the net mortality rate.

Accepted Answer

Rationale:16 - 6 x 100 = 1000 / 485 - 6 = 479 = 2.08%

Question 6

A hospital had 3,500 babies delivered, 35 aborted births, 83 prepartum maternal deaths, and 6 postpartum maternal deaths, 5 of which occurred shortly after delivery. Calculate the maternal mortality rate for this facility.

Accepted Answer

5 x 100 = 500 / 3500 + 35 + 83 + 6 = 3624; 500 / 3624 = 0.1379 or 0.14

Question 7

Sea View Hospital administered anesthesia 4,200 different times to patients. Three deaths occurred after anesthesia during the past year. Calculate anesthesia mortality rate for this facility.

Accepted Answer

3 x 100 = 300 300 / 4200 = 0.07%

Question 8

Sea Breeze Hospital had 3,300 newborn discharges and 5 newborn deaths in 1 year. Calculate the newborn mortality rate for this facility.

Accepted Answer

5 x 100 = 500; 500 / 3300 = 0.15%

Question 9

Coastal Women's Center had 323 live births, 4 intermediate fetal deaths, and 6 late fetal deaths. Calculate the fetal mortality rate for this facility.

Accepted Answer

4 + 6 = 10 x 100 = 1,000 323 + 10 = 333; 1,000 / 333 = 3.0%

Question 10

What term best defines late mortality rate?

Accepted Answer

Number of deaths in the late stages of ongoing treatment

Question 11

Wave Hospital had 15 kidney transplant patients who underwent surgery. Of the 15 patients, 2 died. Calculate the fatality rate.

Accepted Answer

2 x 100 = 200 200 / 15 = 13.33%

Question 12

For the month of March Ocean View Medical Hospital had 138 discharges, which included 10 deaths. Of those deaths, 4 occurred less than 48 hours after admission. Calculate net mortality rate for this facility.

Accepted Answer

10 - 8 = 2 x 100 = 200 138 - 4 = 134 200 / 134 = 1.49% = 1.5%

Question 13

Dr. Lewey operated on 62 patients, 3 of whom died within 10 days of surgery. Dr. Huey operated on 78 patients, of whom 5 died within 10 days of surgery. Calculate their postoperative mortality rates.

Accepted Answer

Dr. Lewey: 3 x 100 = 300 / 62 = 4.8% Dr. Huey: 5 x 100 - 500 / 78 = 6.4%

Question 14

During April, Coastal Women's Center had 221 live births, 1 intermediate fetal death, and 3 late fetal deaths. Calculate the fetal mortality rate for this facility.

Accepted Answer

1 + 3 x 100 = 400 221 + 4 = 225 1,000 / 225 = 1.7%

Question 15

Willow Hospital administered anesthesia 5,420 different times to patients. Eight deaths occurred after anesthesia during the past year. Calculate anesthesia mortality rate for this facility.

Accepted Answer

8 x 100 = 800 800 / 5420 = 0.15%

Question 16

Mortality data are used to track demographics, geographic data, and the cause of death.

Accepted Answer

Mortality data are indeed used to track demographics (such as age, sex, and race), geographic data (to identify where deaths occur), and the cause of death, helping in public health planning and policy development.

Question 17

Direct obstetric deaths are deaths caused by some underlying condition, such as cancer or other conditions that could aggravate the pregnancy.

Accepted Answer

Direct obstetric deaths are those in which a mother dies from complications associated with a procedure that is directly related to pregnancy or birth, such as incidental damage to blood vessels during a C-section.

Question 18

There are three types of fetal deaths: early, intermediate, and late.

Accepted Answer

Fetal deaths are categorized based on gestational age into early (before 20 weeks), intermediate (20-27 weeks), and late (28 weeks or more).

Question 19

Intermediate fetal deaths occur at 18 weeks.

Accepted Answer

Intermediate fetal deaths occur after 20 and before 28 weeks.

Question 20

Postoperative mortality rates are also known as surgical mortality rates?

Accepted Answer

Postoperative mortality rates refer to the rates of death following surgical procedures, which is synonymous with the term surgical mortality rates.

Quiz 5: Morbidity and Mortality Data