Test your basic knowledge |

USMLE Step 1 Prep

Subjects : health-sciences, usmle-step-1

Instructions:

Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can study here.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. When the results of a test are compared to findings for a normative group - what form of reference does the objective test use?
Skeletal muscle
HGPRT
Lipid - soluble hormones are considered slow - acting hormones.
Norm reference (i.e. - 75% of the students in the class will pass)

2. How many pairs of spinal nerves are associated with x Coccygeal vertebrae?
G1 phase (gap 1)
One pair with three to five coccygeal vertebrae. Totaling 31 pairs of spinal nerves.
Erectile dysfunction
Glucuronidation

3. What is the most common one? - Benign tumor of the breast
Fibroadenoma
Chloramphenicol
AML- M3
PGE2

4. Name the macrophages by location: x Lungs
Alveolar macrophages
The hallmarks of LMN lesion injury are absent or decreased reflexes - muscle fasciculations - decreased muscle tone - and muscle atrophy What two areas of the skin do flaccid paralysis). Don't forget - LMN lesions are ipsilateral at the level of the
Syphilitic
Fibroadenoma

5. Name the phase of the ventricular muscle action potential based on the following information: x Slight repolarization secondary to potassium and closure of the sodium channels
hCS and serum estriol - which are produced by the fetal liver and placenta - respectively - are used as estimates of fetal well - being.
Free form determines hormone activity and is responsible for the negative feedback loop.
Phase 1
An increase in serum glucose levels

6. Name the most common type or cause - Pyogenic osteomyelitis
Staphylococcus aureus
The larger the volume of distribution - the lower the plasma concentration of a drug.
Metronidazole
1. Fructokinase 2. Glucokinase 3. Glycerol kinase 4. PEPCK 5. Pyruvate carboxylase 6. Galactokinase 7. Fructose -1 - 6- bisphosphatase 8. Glucose -6- phosphatase

7. Is the Lac operon activated or inactivated in the presence of both glucose and lactose?
Nondominant temporal lobe
ALA dehydrogenase and ferrochelatase
Beryllium
Inactivated; glucose results in decreased cAMP levels and therefore blocks protein binding between cAMP and CAP.

8. Name the three benzodiazepines that are not metabolized by the cytochrome P450 enzyme system.
Order of attachment is site 1 - 2 - 3 - 4 - and for release is 4 - 3 - 2 - 1.
Hemangioblastoma
Bladder carcinoma
Oxazepam - temazepam - and lorazepam ( OTL - Outside The Liver)

9. What is the DOC for the treatment of the late phase response in an asthmatic attack?
Pernicious anemia (secondary to a lack of vitamin B12 absorption)
Metastatic calcification
Corticosteroid
Galactitol

10. At what vertebral levels does the aortic arch begin and end?
Rheumatoid arthritis
Dynorphin
Ratio scale
It both begins and ends at T4 (sternal angle [of Louis]).

11. What are the four DNA oncogenic viruses?
Yolk sac tumor
Sporozoites
1. HPV 2. EBV 3. Hepatitis B 4. Kaposi sarcoma
Anhedonia

12. Familial hypercholesteremia is due to a mutation in the LDL receptor gene. What chromosome carries it?
Rifampin
Acetaldehyde dehydrogenase. When this enzyme is blocked - acetaldehyde builds up - and its presence in excess results in nausea and hypotension.
Chromosome 19
Senile plaques - neurofibrillary tangles - and granulovascular changes in neurons

13. What somatoform disorder is described as x La belle indiff
Resistance and vessel length are proportionally related. The greater the length of the vessel - the greater the resistance is on the vessel.
Isovolumetric contraction
Conversion disorder
Alzheimer disease

14. What type of hypersensitivity is a T cell - mediated response to Ags that are not activated by Ab or complement?
Submandibular gland produces mainly serous and the sublingual gland produces mainly mucous secretions.
Type IV hypersensitivity reaction (delayed type because of the 48-96 hour latency)
Poststreptococcal GN
12 to 16 weeks (in response to mother's face)

15. From which two substances are phospholipids made?
Diacylglycerols and phosphatidic acid
Theca cells secrete estrogen. After fertilization the theca cells form from the theca interna.
eEF-2 is the site where Pseudomonas and Diphtheria toxins work.
Left colic - superior rectal - and sigmoidal arteries

16. Where is lithium metabolized and excreted?

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

17. What is the term for different classes and subclasses of the same gene products?
Isotypes
Antigenic determinant (epitope)
Medial rectus (CN III) (LR6 SO4)3
Courvoisier's law

18. Name the most common cause - Infectious pancreatitis
Mumps
Ag - Ab binding
Leukemias and lymphomas
Epinephrine

19. What is the term for the external urethra opening onto the dorsal surface of the penis?
absorption
Uricosuric
Hallucinations are sensory impressions (without a stimulus); illusions are misperceptions of real stimuli; and delusions are false beliefs that are not shared by the culture.
Epispadia

20. What hormone is required for 1 - 25- dihydroxy- vitamin D (1 - 25- diOH- D) to have bone resorbing effects?
Itraconazole
Mitosis
Mycobacterium leprae
PTH

21. What is the label given to an individual whose IQ is x 90 to 109
Chromosome 11 - 22
Granulosa cells
Average
Pneumotaxic center (short - fast breaths)

22. What hemoflagellate species is the cause of Chagas disease?
Methanol (wood alcohol)
PGE2 and PGF2a
Trypanosoma cruzi
Preganglionic sympathetic neurons

23. Replacing normal affect with 'brain power'
At the beginning of splay is when the renal threshold for glucose occurs and the excess begins to spill over into the urine.
TCR
Intellectualization
Diphenhydramine

24. What adrenal enzyme deficiency results in hypertension - hypernatremia - increased ECF volume - and decreased adrenal androgen production?
17- alpha - Hydroxylase deficiency
Cortisol
Follicular phase
Meningocele All except occulta cause elevated - fetoprotein levels.

25. The duodenal - jejunal flexure is suspended from the posterior abdominal wall by what?
Pelvic splanchnics (They all begin with P.)
Dihydrotestosterone
Ligament of Treitz
hypophosphatemia

26. What happens to intraventricular pressure and volume during isovolumetric contraction?
Childhood
Normal thyroid hormones levels in the plasma are necessary for proper secretion of GH. Hypothyroid patients have decreased GH secretions.
As the name indicates - there is no change in volume but there is an increase in pressure.
The time it takes ACh to diffuse to the postjunctional membrane

27. What pattern of genetic transmission affects only M and has no M- to - M transmission - and mother is usually an unaffected carrier?
X- linked recessive
Nondominant parietal lobe
Corynebacterium diphtheriae
GP41

28. What is the term for any region of the respiratory system that is incapable of gas exchange?
Plasma concentration and excretion rate
HPV serotypes 16 - 18 - 31 - and 33
Anatomical dead space - which ends at the level of the terminal bronchioles.
Shortens

29. If you double the infusion rate of a drug - how long will it take to reach steady state?
Regardless of the rate of infusion - it takes 4 to 5 half - lives to reach steady state.
The blood withdrawn is the unconditioned stimulus - inducing the unconditioned response (fainting). The needle is part of the blood - drawing procedure and is the conditioned stimulus (unconditioned and conditioned stimuli are paired) resulting in th
VIP is an inhibitory parasympathetic neurotransmitter that results in relaxation of the lower esophageal sphincter.
H 1

30. What is the only Rickettsia that is stable in the environment?
Coxiella burnetii
Osteoporosis
Deficiency in surfactant
Adaptive branch. The adaptive branch of the immune system has a slow initiation with rapid responses thereafter.

31. The elimination of the unfertilized egg. In females - meiosis II is incomplete unless fertilization takes place.
Menses
Ketoconazole
Hypervariable region
Streptomycin

32. With what stage of sleep are nightmares associated?
REM sleep. Nightmares are frightening dreams that we recall.
p -53
Phase I
1:1. Remember - the flow through the pulmonary circuit and the systemic circuit are equal.

33. At What age does a child develop x Preferential smile?

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

34. What is the maximum rate possible with a given amount of enzyme?
Conn syndrome (primary hyperaldosteronism)
Cytosine
Demeclocycline
Vmax

35. The gallbladder functions to...
produce bile
RSV
CN V - VI - VII - and VIII
Breathing high - pressure nitrogen over a long time and sudden decompression result in the bends.

36. Name the DNA virus x Linear dsDNA; nuclear envelope; icosahedral; replicates in the nucleus
IgM
20:1T4T3. There is an increase in the production of T3 when iodine becomes deficient.
Dyslexia
Herpes virus

37. What test is used to screen for HIV?
N- formyl - methionine LTB4 C5a IL-8
Centriacinar worse in upper lobes; panacinar worse in base of lower lobes
ELISA. It detects anti - p24 IgG.
Atropine with pralidoxime

38. What type of bias is it when the information is distorted because of the way it is gathered?
Guanethidine and bretylium
HBcAb IgM - HBV- DNA - HBeAg - HBsAg
Measurement bias
Autism. Head - banging - rocking - and self - injurious behaviors are also common in autism.

39. What type of scheduled reinforcement states that after a desired response - the reinforcement is given x After a set number of responses?
Internal carotid artery
Third M PITS for pharyngeal pouch derivatives
Fixed ratio (rewards set behaviors)
50% - with 50% of them having the child

40. What stromal tumor in males is characterized histologically with crystalloids of Reinke?
Leydig cell tumor
Hairy cell leukemia
LH
Posterior chamber

41. At What age does IQ stabilize?
Liver
IgE
From age 5 onward IQ stabilizes.
O2 has a higher driving force but is only one - twenty- fourth as soluble as CO2. CO 2 has a very small partial pressure difference across the alveolar membrane (47-40 = 7 mmHg) - but it is extremely soluble and therefore diffuses readily across the

42. What statistical test compares the means of groups generated by two nominal variables by using an interval variable?
Meiosis I; disjunction with centromere splitting occurs during meiosis II.
Misoprostol
Shiga toxin (enterohemorrhagic Escherichia coli produces Vero toxin - Which is quite similar to shiga toxin)
Two - way ANOVA. It allows the test to check several variables at the same time.

43. What axis I disorder is characterized by a clinically significant syndrome that affects social - occupational - and/or academic achievement; occurs less than 3 months after a stressor; and abates less than 6 months after the stressor is removed?
Gonorrhea
Camper's fascia; Scarpa's fascia is devoid of fat. (Remember campers are fat.)
Adjustment disorder. It is a diagnosis of exclusion (used if no other choice).
Musculophrenic and superior epigastric arteries

44. Are resistant to the effects of aminoglycosides.
8 weeks (response to a face)
100% - with about 20% remaining positive after 1 year
Anaerobes
Third week

45. What is the term for the force the ventricular muscle must generate to expel the blood into the aorta?
Crude mortality rate
Streptococcus viridans
Afterload
They innervate LMNs.

46. Have analgesic - antipyretic - anti - inflammatory - and antiplatelet activities.
IF and GTP (eIF for eukaryotes)
NSAIDs
Axillary nerve and posterior humeral artery
F- Met - Peptides

47. What viruses are associated with cervical carcinoma?
The resistance will decrease one - sixteenth of the original resistance.
Propofol
Ethyl alcohol
HPVs 16 and 18

48. Do the following structures pick up stain from hematoxylin or eosin? - Nucleoli
Hematoxylin
Chromosome 13
Histoplasma capsulatum
HHV-8

49. What is absorbed in the gallbladder to concentrate bile?
Water
The lateral vestibular nucleus
Vagus nerve
It increases REM and total sleep time.

50. What type of resistance system - high or low - is formed when resistors are added in a series?
A high - resistance system is formed when resistors are added in a series.
RNA polymerase II
H 1
Increased erection and libido

Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?

Major Subjects
Tests & Exams AP CLEP DSST GRE SAT GMAT	Certifications CISSP go to https://www.isc2.org/ PMP ITIL RHCE MCTS More...	IT Skills Android Programming Data Modeling Objective C Programming Basic Python Programming Adobe Illustrator More...	Business Skills Advertising Techniques Business Accounting Basics Business Strategy Human Resource Management Marketing Basics More...
Soft Skills Body Language People Skills Public Speaking Persuasion Job Hunting And Resumes More...	Vocabulary GRE Vocab SAT Vocab TOEFL Essential Vocab Basic English Words For All Global Words You Should Know Business English More...	Languages AP German Vocab AP Latin Vocab SAT Subject Test: French Italian Survival Norwegian Survival More...	Engineering Audio Engineering Computer Science Engineering Aerospace Engineering Chemical Engineering Structural Engineering More...
Health Sciences Basic Nursing Skills Health Science Language Fundamentals Veterinary Technology Medical Language Cardiology Clinical Surgery More...	English Grammar Fundamentals Literary And Rhetorical Vocab Elements Of Style Vocab Introduction To English Major Complete Advanced Sentences Literature Homonyms More...	Math Algebra Formulas Basic Arithmetic: Measurements Metric Conversions Geometric Properties Important Math Facts Number Sense Vocab Business Math More...	Other Major Subjects Science Economics History Law Performing-arts Cooking Logic & Reasoning Trivia

Test your basic knowledge |

USMLE Step 1 Prep

Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?

Let me suggest you:

Browse all subjects

Browse all tests

Most popular tests

Major Subjects

Tests & Exams

Certifications

IT Skills

Business Skills

Soft Skills

Vocabulary

Languages

Engineering

Health Sciences

English

Math

Other Major Subjects

Browse all subjects

Browse all tests

Most popular tests