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NBE Science Study Guide | National Board Examination Practice Questions & Exam Prep 2026/2027

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Ace your NBE Science examination preparation with this focused study guide designed to support effective review and strengthen your understanding of essential funeral service science concepts. This resource provides structured practice covering embalming chemistry, anatomy and physiology, pathology, microbiology, arterial and cavity embalming, embalming instruments and procedures, fluid calculations, preservation principles, restorative practices, OSHA and safety concepts, postmortem changes, and other core National Board Examination science topics. Ideal for funeral service and mortuary science students seeking an organized 2026/2027 learning resource to reinforce key concepts and prepare effectively for the NBE Science examination.

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NBE SCIENCE EXAM
Which artery changes its name to the femoral artery and is external iliac
used in embalming an autopsied case



The inferior vena cava is the vein which accompanies the descending aorta




What is the time weighted average (TWA) formaldehyde 0.75 ppm
exposure limit?



The time weighted average formaldehyde exposure test 8 hours
uses a sample with a time parameter of



The short term exposure limit for formaldehyde uses a 15 min
sample with a time parameter of



What is the formaldehyde short term exposure limit (STEL) 2.0 ppm




What is the Action Level for the OSHA Formaldehyde 0.5 ppm
Standard



What condition may lead to distention of the body tissues? anasarca




What effect does edema have on arterial embalming fluid dilutes the arterial fluid
that is injected into the deceased



Directing the point of the trocar toward a point 1/4 of the cecum/appendix
distance from right anterior superior iliac spine to the pubic
symphysis is the trocar guide for the


How many oz of 30 index fluid needed to make 1 gallon of 8.5
2% solution



What unit is responsible for administering the Bloodborne Department of Labor
Pathogen Standard



An embalming room ventilation system is an example of engineering control
what type of safety measure



what is the recommended minimum number of air 15
exchanges per hour for a preparation room



proper disposal of sharps is an example of which type of work practice control
safety measure

, NBE SCIENCE EXAM
which vaccination must be offered at no cost to employees Hep B
who have occupational exposure



What law requires employers to communicate dangers that Hazard Communication Rule
exist in the workplace and to provide training on the safe
use and handling of dangerous materials to employees


Liver mortis is a result of hypostasis




Post-mortem stain is the result of hemolysis




What is the post-mortem time frame for secondary 36-72 hours
flaccidity



which process is considered the single most important
factor in the initiation of decomposition



what is optimum temperature for decomposition to occur 98 degrees




Strong embalming fluids have a formaldehyde index range 26-36
of



Medium strength embalming fluids have a formaldehyde 16-25
index range of



What chemical is present in tissue builder nitrocellulose




The level of the second costal cartilage extending to the left common carotid
superior border of the thyroid cartilage describes the
anatomical limit of which vessel


The level of the right sternoclavicular articulation extending right common carotid
to the superior border of the thyroid cartilage describes the
anatomical limit for which vessel


What is the position of the internal jugular vein to the lateral and superficial
common carotid artery



The source purge that appears like coffee grounds is likely stomach




the source of purge that appears creamy and white is likely brain

, NBE SCIENCE EXAM
what type of suture should be used to close a colostomy purse string
opening



which suture is best suited for exposed skin intradermal




what condition may lead to direct loss of all arterial fluid to ruptured aortic aneurysm
the abdominal cavity



If the foot or lower leg of the deceased exhibits gangrene femoral
or recent amputation, which vessel should be avoided as a
primary injection point


what is the central distribution point for arterial fluid arch of the aorta




what is the central point of blood drainage in the dead right atrium
human body



which type of incision is not recommended for opening longitudinal
sclerotic arteries



a pucker visible at the top of the chin is the primary muscular suture
disadvantage of which method of mouth closure



when using a needle injector, the top pin should be nasal spine
inserted into the



which method of drainage involves continuous injection intermittent
with drainage taken at intervals



what is the point of entry of the trocar for cavity aspiration 2 inches above and 2 inches to the left of the umbilicus




A decedent's family does not want embalming or invasive dental tie
procedures performed, but wishes to identify the
deceased. What method of mouth closure should be used
for the indentification


which is the best instrument used for clamping a vessel hemostat




what is the best post-embalming treatment for emaciation hypodermic tissue building




what condition results from formaldehyde reacting with formaldehyde grey
hemoglobin in the tissues

, NBE SCIENCE EXAM
what is the best instrument for removing fluid from the nasal aspirator
throat



which term describes disinfection that takes place during concurrent
the embalming process



which stitch is used to turn under excess margins of skin in worm
an incision



what drainage procedure may be used to restore normal restricted
contour and moisture to an emaciated deceased



to which abdominal region is the trocar directed to aspirate umbilical
the transverse colon



which instrument would likely not be used in embalming an angular forceps
autopsy case



which of the following methods consists of injecting a few alternate
ounces of arterial chemical, then draining for a few
minutes- each one separately


which method of mouth closure should not be used when needle injector
the maxilla is porous or degraded



which chemical is used in compresses for bleaching phenol
tissues



which of the following blood discolorations may be livor mortis
removed by arterial injection



if a body contains appreciably more than 5 mc of any embalm only under the advice of a radiation protection officer
radioactive isotope and there is to be an autopsy, the
embalmer should


After embalming a body that has received radiation soaked in a good soap or detergent and rinsed well with running water
therapy, the instruments should be



After embalming a body that has received radiation incinerated
therapy, gloves and disposable waste matter should be



Any method of disposition without formal viewing, direct disposition
visitation, or ceremony with the body present is called



Disposition by cremation without any visitation or services direct cremation
where the body is present is called

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