final review Flashcards
- All these cellular responses are potentially reversible except
True: atrophy, hypertrophy, hyperplasia, metaplasia
- Allostasis is best defined as
the overall process of adaptive change necessary to maintain survival and well-being.
- Malignant neoplasms of epithelial origin are known as
carcinomas
- In regards to the Multistep Nature of Carcinogenesis, which is false about the Progression stage
TRUE:
-Mutant, proliferating cells begin to exhibit malignant behavior.
-Cells whose phenotype gives them a growth advantage proliferate more readily.
-Evolved tumor cells differ significantly from the normal tissue.
-Progress to malignant characteristics
Laminin receptors
Lytic enzymes
Anchorage independent
Bizarre karyotype
- The ________ are peptides produced and secreted by white blood cells.
Defensins
- What virus is associated with adult T-cell leukemia/lymphoma?
Retrovirus
- Which of the following is NOT abnormal behavior of cancer cells?
Cancer cells undergo apoptosis. Apoptosis is the death of cells with damaged DNA. When the immune system recognizes abnormal cells, it activates apoptosis, which prevents tumor growth. Even though cancer cells are abnormal, they do not undergo apoptosis.
- Which is false about the stages of Hemostasis?
TRUE: Vasoconstriction ,Platelet plug formation ,Coagulation (clot formation),Clot retraction/repair ,Fibrinolysis (clot dissolution)
- Which will not belong to the category of Myeloid neoplasms?
-Acute Lymphoblastic Leukemia (ALL)
-Chronic Lymphocytic Leukemia (CLL)
-Lymphomas
- Which is false about Hereditary Spherocytosis?
False: Hereditary Spherocytosis has a decreased osmotic fragility test
True:
-Hereditary Spherocytosis is an Inherited, Autosomal Dominant disease.
-Hereditary Spherocytosis is caused by a Deficiency in Spectrin which comprises the Red Cell Membrane, resulting in a Spherocyte shape.
-Hereditary Spherocytosis results in Extravascular Hemolysis in the Spleen.
-Hereditary Spherocytosis affects Northern Europeans through Autosomal Dominant inheritance.
- Childhood will exhibit Anemia, Splenomegaly, and Jaundice.
- Adulthood may exhibit Gallstones
- Cardiogenic shock is characterized by
reduced cardiac output.
- Hypotension, distended neck veins, and muffled heart sounds are classic manifestations of
Cardiac Tamponade
- Sepsis has been recently redefined as
a systemic inflammatory response to infection.
- What is false about Acute Renal Failure?
ARF is always irreversible and leads to chronic kidney disease, does not affect urine output, in prerenal ARF, dilute urine is formed, ATN can be treated with immunosuppression.
- What is false about Renin-angiotensin-aldosterone system?
Angiotensin converting enzyme changes angiotensinogen into angiotensin I
- In regards of Multiple Organ Dysfunction Syndrome (MODS), what is false?
TRUE:
-When 2 or more systems are affected
-Most common causes of secondary MODS: sepsis and septic shock
-Initiated by immune mechanisms that are overactive and destructive
-Cytokines affect endothelium, recruit neutrophils, and activate inflammation in vascular beds leading to tissue destruction and organ dysfunction.
- Which is CORRECT about Neurogenic Shock?
Neurogenic shock is sometimes caused by spinal injuries.
- In compensated respiratory acidosis, we can observe all of the following except;
TRUE:
Increased PaCO2 (primary imbalance)
Increased bicarbonate concentration (compensation)
Decreased (somewhat low) or even normal pH, depending on degree of compensation
- Which is false about Nephroblastoma (Wilms’ tumor)?
true:
Nephroblastoma (Wilms’ tumor)
* Most common kidney cancer in children
* Clinical manifestations: identified by palpable abdominal mass; may also have abdominal pain, hypertension, and/or hematuria
* Treatment: nephrectomy, radiation therapy, and chemotherapy
* Excellent cure rate
- Which is false about Minimal change disease (MCD)?
TRUE
-Previously called lipoid nephrosis
-Alteration in glomerular podocytes
-Sudden onset of edema, nephrotic levels of protein loss, and hypoalbuminemia
-Responds well to corticosteroids
- Which is incorrect about Peritoneal dyalisis?
TRUE: A procedure performed to
correct an imbalance of fluid or electrolytes in
the blood or to remove toxins by intermittent
infusion and removal of dialysis fluid through a
catheter in the peritoneal cavity.
- The Clinical manifestations of Urethral Valve Abnormalities include all the following except ;
TRUE:
Intrauterine renal failure causing:
* Oligohydramnios (decreased amniotic fluid)
* Pulmonary hypoplasia (incomplete lung development)
* Stillbirth or extreme distress at the time of birth
Inability to void (normally void within 24 hours of birth)
Abdominal masses, such as palpable bladder or hydronephrotic kidneys
Varying degrees of azotemia or renal failure
Urinary ascites (extravasated urine in the peritoneum)
Floating bowel on x-ray
- Which false about the etiology of neoplasms of the Penis?
- Pathophysiologically, esophageal varices can be attributed to
portal hypertension
- Which of the following is not an Insulin action?
TRUE:
-Enhance protein synthesis and prevent muscle breakdown
-Inhibit gluconeogenesis
-Enhance fat deposition by preventing fat breakdown (lipolysis) and inducing lipid formation
-Stimulate growth by enhancing secretion of IGF-1 (somatomedin)
- In contrast to osteoarthritis, rheumatoid arthritis may be associated with
- Cerebral aneurysm is most frequently the result of
subarachnoid hemorrhage.
- Characteristics of scoliosis include ( Select all that apply.)
-involvement of lateral curvature of the spine,
-increase during periods of rapid growth,
-identifiable by uneven shoulders or scapular prominence,
-possibility of leading to respiratory complications
- Common characteristics of sarcoidosis include (Select all that apply.)
-Presence of CD4+ T cells
-a non-productive cough
-granulomas in multiple body systems
-fatigue, weight loss, and fever
- Clinical manifestations of pleural effusion include (Select all that apply.)
-dyspnea,
-sharp pain on expiration,
-diminished breath sounds,
-a tracheal shift, if large
- Dysfunctional uterine bleeding (DUB) is caused by
Abnormal endometrial bleeding not associated with tumor, inflammation, pregnancy, trauma, or hormonal effects
- The major buffer in the extracellular fluid is
bicarbonate buffer system.
- Causes of hypomagnesemia include
-Serum magnesium concentration below the lower limit of normal (1.5 mEq/L)
Decreased magnesium intake or absorption: chronic alcoholism, malnutrition, ileal resection
Decreased physiologic availability of magnesium: elevated plasma free fatty acids
Increased magnesium excretion: usually renal
Loss of magnesium by an abnormal route: emesis
Increased neuromuscular excitability from excessive amount of acetylcholine
Insomnia
Hyperactive reflexes
Muscle cramps
Muscle twitching, grimacing
Positive Chvostek sign
Positive Trousseau sign
Clinical manifestations
Increased neuromuscular excitability from excessive amounts of acetylcholine
Nystagmus
Dysphagia
Ataxia
Tetany
Seizures
Cardiac dysrhythmias
- Signs and symptoms of clinical dehydration include
-Sudden weight loss
-Postural blood pressure decrease with concurrent increased heart rate
-Lightheadedness, dizziness, or syncope upon standing
-Flat neck veins when supine or neck veins that collapse during inspiration
(older children and adults)
-Sunken fontanel (infants)
-Rapid, thready pulse
-Prolonged small-vein filling time
-Prolonged capillary refill time
-Oliguria
-Decreased skin turgor
-Dryness of oral mucous membranes
-Absence of sweat and tears
-Hard stools
-Soft, sunken eyeballs
-Longitudinal furrows in the tongue
-Thirst
-Increased serum sodium concentration
-Confusion, lethargy
-Coma
-Hypovolemic shock
- Which causes vasoconstriction?
A decrease in the diameter of a blood vessel, usually referring to an arteriole, caused by contraction of vascular smooth muscle.
- Which is a cause of thrombocytopenia?
Decreased Platelet Production
Folate/B12 deficiency
Radiation therapy
Chemotherapy
Drugs (e.g., alcohol, thiazides, phenytoin)
Aplastic anemia
Cancer in bone marrow
Decreased Platelet Survival
Drugs (e.g., thiazides, digoxin, heparin, furosemide, certain antibiotics)
Mechanical prosthetic heart valves
Viral and bacterial infections
Circulating immune complexes
Increased destruction in the spleen
Disseminated intravascular coagulation
Splenic Sequestration (Pooling)
Splenomegaly
Hypothermia
Platelet Dilution
Massive transfusions with blood stored for more than 24 h
- Subarachnoid hemorrhage is usually managed with volume expansion and blood pressure support to enhance cerebral perfusion. This is necessary because subarachnoid hemorrhage predisposes to
cerebral vasospasm
- Which condition enhances lymphatic flow?
Increasing interstitial fluid colloid osmotic pressure
- When a patient is struck in the eye by a baseball, the result is redness and swelling. This increase in blood flow to a localized area is called
hyperemia
- The direct cause of stress incontinence is
-Decreased pelvic muscle support of the bladder and urethra or intrinsic urethral sphincter deficiency results
- Loss of bladder control caused by increased intraabdominal pressure (e.g., from coughing) combined with pelvic muscle laxity.