Chapter·BiochemistryVitamin/mineral functions and deficiencies

Fat-soluble vitamins (A, D, E, K)Downloads

10Questions
10Flashcards
1Tables & Flowcharts

Study Materials

Practice

Sample Questions

1

You are counseling a pregnant woman who plans to breast-feed exclusively regarding her newborn's nutritional requirements. The child was born at home and the mother only plans for her newborn to receive vaccinations but no other routine medical care. Which vitamins should be given to the newborn?

AVitamin B6

BVitamin K and Vitamin D

CVitamin K

DFolic acid

EVitamin D

2

A 48-year-old man comes to the emergency department because of a 1-hour history of heavy nasal bleeding. He drinks half a bottle of sherry daily. His pulse is 112/min, and blood pressure is 92/54 mm Hg. Physical examination shows scattered ecchymoses across the extremities and oozing from a venipuncture site. Laboratory studies show a prothrombin time of 28 seconds and a partial thromboplastin time of 36 seconds. Impaired function of which of the following proteins is the most likely cause of this patient's hemorrhage?

AVon Willebrand factor

BProtein S

CEpoxide reductase

DProlyl hydroxylase

EGamma-glutamyl carboxylase

3

A 10-year-old boy is brought into your clinic by his mother for sunburns that have not been healing. The mother states that he easily gets sunburned. The mother admits she gave birth to him at home and has never taken him to see a doctor. The patient walks with a wide stance gait and appears unstable on his feet. He has an extensive erythematous, scaling, hyperkeratotic rash on his face, neck, arms and legs. After extensive workup, the patient is found to have a genetic disorder that results in defective absorption of an important vitamin. Which of the following is likely to be low if measured?

AVitamin K

BNiacin

CFolate

DVitamin A

EVitamin B12

+ 7 more in the PDF

More Vitamin/mineral functions and deficiencies downloads

Browse all chapters

View all