Exam 4, FNDH 400 Dr. Lindshield questions and answers latest top score

Exam 4, FNDH 400 Dr.
Lindshield
questions and answers latest
top score ..




. Warfarin thins blood by decreasing the absorption of vitamin A. T F -
CORRECT ANSWER.False- Warfarin thins blood by decreasing the
regeneration of vitamin K

25(OH)D is the active form of vitamin D, which is created by 25-
hydroxylase in the kidney.
T F - CORRECT ANSWER.False- 25(OH)D is the circulating form of vitamin D created
by 25- Hydroxylase in the liver

1,25(OH)D2 binding to RXR increases the synthesis of calcitonin, which
increases absorption of calcium.
T F - CORRECT ANSWER.

In response to high iron levels, hephaestin is released from the enterocyte,
which causes the degradation of ferritin, thereby decreasing iron excretion.
T F - CORRECT ANSWER.False- In response to high iron levels. hepcidin is
released by the liver which causes causes the degredation of ferroportin,
preventing the transportation of iron into circulation

Fluoride decreases teeth's resistance to acid by replacing phosphate
molecules in hydroxyapatite, forming fluorhydroxyapatite.
T F - CORRECT ANSWER.False- fluoride increases teeth's resistance to acid by
replacing phosphate molecules in hydroxyapatite forming fluorohydroxyapetite

Phylloquinone, is the plant form of vitamin A that has an
unsaturated tail, that is of varying length to multiple repeated
units.

, T 2F 2- 2CORRECT 2ANSWER.False- 2plant 2form 2of 2vitamin 2K, 2unsaturated 2tail

Phytate 2is 2good 2source 2of 2bioavailable 2phosphorus, 2but 2binds 2to, 2and
2inhibits, 2the 2absorption 2of 2cobalamin 2and 2folic 2acid.

T 2F 2- 2CORRECT 2ANSWER.False, 2phytate 2is 2not 2a 2good 2source 2of 2bioavailable
2phosphorus




8. 2Atrophic 2gastritis 2leads 2to 2a 2decrease 2in 2haptocorrin, 2which 2causes
2a 2decrease 2in 2the 2absorption 2of 2menaquinone.

T 2F 2- 2CORRECT 2ANSWER.False- 2Atrophic 2gastritis 2leads 2to 2a 2decrease 2in
2intrinsic 2factor, 2which 2causes 2a 2decrease 2in 2B12 2absorption.




Vitamin
2D 22

2is 2produced 2by 2animals, 2has 2an 2additional 2double 2bond, 2and

2increases 225(OH)D 2levels 2more 2than 2vitamin 2D

3
.
T 2F 2- 2CORRECT 2ANSWER.False- 2Vitamin 2D3 2is 2produced 2by 2animals 2and 2does
2not 2have 2an 2additional 2double 2bond 2and 2increases 225(OH)D 2levels 2more

2than 2vitamin 2D2




Folic 2acid 2fortification 2was 2implemented 2because 2the 2neural 2tube
2closes 2early 2after 2conception 2when 2many 2women 2do 2not 2know 2they

2are 2pregnant, 2and 2the 2challenge 2in 2getting 2all 2women 2of

2reproductive 2age 2to 2take 2a 2supplement.

T 2F 2- 2CORRECT 2ANSWER.True

Name 2the 2micronutrient, 2which 2you 2learned 2about 2in 2this 2exam 2section,
2that 2if 2consumed 2at 2a 2high 2level 2it 2can 2make 2it 2difficult 2to 2diagnose 2the

2deficiency 2of 2another 2micronutrient 2(also 2name 2this 2micronutrient, 22

2points). 2- 2CORRECT 2ANSWER.Folic 2acid 2consumed 2at 2high 2levels 2can 2help

2disguise 2a 2vitamin 2B12 2anemia




2. 2Your 2friend 2is 2interested 2in 2having 2his/her 2blood 2vitamin 2D 2and 2A 2status
2measured.

What
forms 2of 2the 2vitamins 2would 2he/she 2have 2measured 2- 2CORRECT
2ANSWER .levels 2are 2measured 2to 2assess 2a 2person's 2vitamin 2D 2status.

2Vitamin 2A 2retinol




How 2are 2vitamin 2A 2and 2iron 2stored 2in 2the 2liver 2(4 2points)? 2- 2CORRECT
2ANSWER .Vitamin 2A 2is 2stored 2as 2retinyl 2esters 2and 2iron 2is 2stored 2as 2ferritin




Your 2friend 2had 2his/her 2hemoglobin 2measured 2and 2the 2value 2was 2normal.
2He/she 2tells 2you

that 2based 2on 2this 2that 2he/she 2has 2optimal 2iron 2status. 2Do 2you 2agree 2with
2your 2friend's 2assessment? 2Why 2or 2why 2not 2- 2CORRECT 2ANSWER.No, 2the

2information 2he 2has 2is 2inadequate 2because 2you 2need 2to 2test 2for 2plasma

2ferritin, 2bone 2marrow 2iron, 2serum 2transferrin 2saturation 2and 2plasmam 2iron