What causes the rapid change in the resting membrane potential to initiate an action poten-
tial - ANSWER Sodium gates open, sodium rushes into the cell, changing the mem-
brane potential from negative to positive
What type of necrosis is often associated with pulmonary tuberculosis - ANSWER Ca-
seous Necrosis
Low plasma albumin causes edema as a result of a reduction in which pressure - AN-
SWER Plasma oncotic
When a child inherits a disease that is autosomal recessive, it is inherited from who - AN-
SWER Both parents are carriers
Describe the chromosomal defect related to Prader Willi Syndrome - ANSWER Imprint-
ing, deletion, 4mb of chromosomes 15, inherited from Father short structure, hypotonia,
small hands and feet, obese, mild to moderate mental retardation, hypogonadism
What mechanism can cause hypernatremia - ANSWER Caused by loss of H2O, DM in-
sufficient H2O intake
Hypertonic solution
Over secretion of aldosterone
Cushing syndrome because of adrenocorticotropic hormone
1
, What are the causes of hyperkalemia - ANSWER Excess diet or intravenous intake
RF
K+ sparing diuretics
Hypoaldosteronism
Shift from ICF to ECF
Metabolic acidosis
What are likely causes of respiratory acidosis - ANSWER Depress of respiratory center,
disorder of the lung parenchyma, alveolar hypoventilation CO2 is retained increase in H+,
CO2 excess in blood
Over sedation, brainstem trauma
Pulmonary edema, emphysema, asthma, bronchitis
Acute airway obstruction - does not affect renal buffer mechanism
Chronic COPD-renal compensation is effective and established
When considering white blood cell differentials, acute inflammatory reactions are related to
elevations of what leukocyte - ANSWER Neutrophils
In which structure do B lymphocytes mature and undergo changes that commit them to be-
coming B cells - ANSWER Bone marrow
Which immunoglobulins is present in blood, saliva, breast milk, and respiratory secretions -
ANSWER IgA
Which T cell controls our limits in the immune response to protect the host own tissue
against an autoimmune response - ANSWER Regulatory T (Treg) cells
The common hay fever allergy is expressed through a reaction that is mediated by class of
immunoglobulins - ANSWER IgE
2