NR507 Week 4 Midterm Exam 2019

NR507 Week 4 Midterm Exam 2019

NR507 Week 4 Midterm Exam 2019

1. Question : Hemolytic disease of the newborn (HDN) can occur if the mother:

: Is Rh-positive and the fetus is Rh-negative

Is Rh-negative and the fetus is Rh-positive

Has type A blood and the fetus has type O

Has type AB blood and the fetus has type B

Question 2. Question : Examination of the throat in a child demonstrating signs and symptoms of acute epiglottitis may contribute to which life-threatening complication?

: Retropharyngeal abscess

Laryngospasms

Rupturing of the tonsils

Gagging induced aspiration

Comments:

Question 3. Question : If the sinoatrial (SA) node fails, then at what rate (depolarizations per minute) can the atrioventricular (AV) node depolarize?

: 60 to 70

40 to 60

30 to 40

10 to 20

Question 4. Question : What is the ratio of coronary capillaries to cardiac muscle cells?

: 1:1 (one capillary per one muscle cell)

1:2 (one capillary per two muscle cells)

1:4 (one capillary per four muscle cells)

1:10 (one capillary per ten muscle cells)

NR507 Week 4 Midterm Exam 2019

Question 5. Question : Which cytokines initiate the production of corticotropin-releasing hormone (CRH)?

: IL–1 and IL-6

IL-2 and TNF-?

IFN and IL-12

TNF-ß and IL-4

Question 6. Question : What process allows the kidney to respond to an increase in workload?

: Glomerular filtration

Secretion of 1,25-dihydroxyvitamin D3

Increased heart rate

Compensatory hypertrophy

Question 7. Question : Which type of antibody is involved in type I hypersensitivity reaction?

: IgA

IgE

IgG

IgM

Question 8. Question : Causes of hyperkalemia include:

: Hyperparathyroidism and malnutrition

Vomiting and diarrhea

Renal failure and Addison disease

Hyperaldosteronism and Cushing disease

Question 9. Question : What is the first stage in the infectious process?

: Invasion

Colonization

Spread

Multiplication

Question 10. Question : Which statement is true concerning the IgM?

: IgM is the first antibody produced during the initial response to an antigen.

IgM mediates many common allergic responses.

IgM is the most abundant class of immunoglobulins.

IgM is capable of crossing the human placenta.

Question 11. Question : An infant has a loud, harsh, holosystolic murmur and systolic thrill that can be detected at the left lower sternal border that radiates to the neck. These clinical findings are consistent with which congenital heart defect?

: Atrial septal defect (ASD)

Ventricular septal defect (VSD)

Patent ductus arteriosus (PDA)

Atrioventricular canal (AVC) defect

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Question 12. Question : What is the chief predisposing factor for respiratory distress syndrome (RDS) of the newborn?

: Low birth weight

Alcohol consumption during pregnancy

Premature birth

Smoking during pregnancy

Question 13. Question : Which cardiac chamber has the thinnest wall and why?

: The right and left atria; they are low-pressure chambers that serve as storage units and conduits for blood.

The right and left atria; they are not directly involved in the preload, contractility, or afterload of the heart.

The left ventricle; the mean pressure of blood coming into this ventricle is from the lung, which has a low pressure.

The right ventricle; it pumps blood into the pulmonary capillaries, which have a lower pressure compared with the systemic circulation.

Question 14. Question : What is the direct action of atrial natriuretic hormone?

: Sodium retention

Sodium excretion

Water retention

Water excretion

Points Received: 2 of 2

Comments:

Question 35. Question : What is the role of caretaker genes?

: Maintenance of genomic integrity

Proliferation of cancer cells

Secretion of growth factors

Restoration of normal tissue structure

Points Received: 2 of 2

Comments:

NR507 Week 4 Midterm Exam 2019

Question 36. Question : Which blood cell type is elevated at birth but decreases to adult levels during the first year of life?

: Monocytes

Platelets

Neutrophils

Lymphocytes

Points Received: 0 of 2

Comments:

Question 37. Question : Which term is used to identify the movement of gas and air into and out of the lungs?

: Perfusion

Ventilation

Respiration

Diffusion

Points Received: 0 of 2

Comments:

Question 38. Question : In which primary immune deficiency is there a partial-to-complete absence of T-cell immunity?

: Bruton disease

DiGeorge syndrome

Reticular dysgenesis

Adenosine deaminase deficiency

Points Received: 2 of 2

Comments:

Question 39. Question : Which substance has been shown to increase the risk of cancer when used in combination with tobacco smoking?

: Alcohol

Steroids

Antihistamines

Antidepressants

Points Received: 2 of 2

Comments:

Question 40. Question : Which statement concerning exotoxins is true?

: Exotoxins are contained in cell walls of gram-negative bacteria.

Exotoxins are released during the lysis of bacteria.

Exotoxins are able to initiate the complement and coagulation cascades.

Exotoxins are released during bacterial growth.

Points Received: 2 of 2

Comments:

Question 41. Question : Which type of immunity is produced by an individual after either natural exposure to the antigen or after immunization against the antigen?

: Passive-acquired immunity

Active-acquired immunity

Passive-innate immunity

Active-innate immunity

Points Received: 2 of 2

Comments:

Question 42. Question : Research supports the premise that exercise has a probable impact on reducing the risk of which cancer?

: Liver

Endometrial

Stomach

Colon

Points Received: 2 of 2

Comments:

Question 43. Question : What part of the kidney controls renal blood flow, glomerular filtration, and renin secretion?

: Macula densa

Visceral epithelium

Juxtaglomerular apparatus (JGA)

Filtration slits

Points Received: 2 of 2

Comments:

Question 44. Question : What is the fundamental physiologic manifestation of anemia?

: Hypotension

Hyperesthesia

Hypoxia

Ischemia

Question 45. Question : Between which months of age does sudden infant death syndrome (SIDS) most often occur?

: 0 and 1

2 and 4

5 and 6

6 and 7

Points Received: 2 of 2

Comments:

Question 46. Question : What is the purpose of the spirometry measurement?

: To evaluate the cause of hypoxia

To measure the volume and flow rate during forced expiration

To measures the gas diffusion rate at the alveolocapillary membrane

To determine pH and oxygen and carbon dioxide concentrations

Points Received: 2 of 2

Comments:

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Question 47. Question : Carcinoma in situ is characterized by which changes?

: Cells have broken through the local basement membrane.

Cells have invaded immediate surrounding tissue.

Cells remain localized in the glandular or squamous cells.

Cellular and tissue alterations indicate dysplasia.

Points Received: 2 of 2

Comments:

Question 48. Question : The drug heparin acts in hemostasis by which processes?

: Inhibiting thrombin and antithrombin III (AT-III)

Preventing the conversion of prothrombin to thrombin

Shortening the fibrin strands to retract the blood clot

Degrading the fibrin within blood clots

Points Received: 2 of 2

Comments:

Question 51. Question : Which term is used to describe a muscle cell showing a reduced ability to form new muscle while appearing highly disorganized?

: Dysplasia

Hyperplasia

Myoplasia

Anaplasia

Points Received: 2 of 2

Comments:

Question 52. Question : Which statement best describes a Schilling test?

: Administration of radioactive cobalamin and the measurement of its excretion in the urine to test for vitamin B12 deficiency

Measurement of antigen-antibody immune complexes in the blood to test for hemolytic anemia

Measurement of serum ferritin and total iron-binding capacity in the blood to test for iron deficiency anemia

Administration of folate and measurement in 2 hours of its level in a blood sample to test for folic acid deficiency anemia.

Points Received: 2 of 2

Comments: