Unit 1 Module 3: Hematopoetic Function and Neoplasms Flashcards
A patient has tested positive for having the BRCA-1 gene. What implications does this finding have?
The patient has an increased risk for developing breast and/or ovarian cancer.
Each child of a patient with the mutation as a 1 in 2 chance of inheriting the mutation.
Is this a risk factor for cancer? Individual who cleans fireplace chimneys for a living
Yes, constant exposure to environmental toxins like chimney soot increases the risk for cancer.
What type of cells is this statement describing?
Cells are stopped by contact inhibition, which means that the cell stops growing when it touches another cell.
Normal cells
Normal cells stop growing when they touch other cells. Benign tumor cells grow by expansion without invading other tissues (usually encapsulated). Malignant tumor cells grow by invasion, sending out processes that infiltrate surrounding tissues.
This type of anemia is caused by deficiencies that lead to RNA/DNA synthesis problems.
macrocytic anemia (folic acid and b12)
t/f risk factor for cancer: h. pylori
true
Oncogenes take one mutation to become activated, where it takes _______ mutation(s) in tumor suppressor cells for these “brakes” to no longer function.
2
Patients who have had a gastrectromy are at risk for this type of anemia.
b12 deficiency (due to lack of intrinsic factor which is found in the stomach)
[normal/benign/cancer] cells go through programmed apoptosis by shortening of telomeres and cessation of cell growth.
normal
What type of cells is this statement describing?
These cells metastasize by infiltrating either the hematologic (blood) or the lymphatic channels.
Only malignant tumor cells metastasize and they do so either by the blood or the lymph channels.
A 35-year old woman is having a preventive exam with her OB-GYN. Which test will used as a screening for cervical cancer?
Pap smear
*It is a common misconception that a pelvic exam or even HPV testing with screen for cervical cancer and that is not true. An individual can have HPV, but not have cervical cancer. The pap smear is a specific cytology examination under the microscope looking for dysplastic cells.
t/f risk factor for cancer: hep C
true
Match the following screening tools with type of cancer: PSA blood test
prostate
Anemia occurs in patients with chronic renal disease due to an inability to make ____________by the kidneys,
erythropoeiten
Is this a risk factor for cancer? Person who weighs 250 lbs. and is 5 feet 2 inches tall.
Yes, obesity increases the risk of cancer. Adipose tissues influence the activity of sex hormones as well as increases hyperinsulinemia.
If a patient has blood loss anemia, what element does the nurse know has been lost in the blood?
Iron
A normal cell repairs errors in DNA made during the cell replication process through the use of:
cyclins are the care-taker proteins that make repairs
A person who carries the BRCA-1 or BRCA-2 gene mutations has an increased risk of cancer.
true
BRCA-1 and BRCA-2 gene mutations that put a person at higher risk for breast, ovarian, prostate, pancreatic and colon cancer. Breast and ovarian cancer is most prevalent.
Is this a risk factor for cancer? A patient who takes immunosuppressive drugs
Yes. The immune system does surveillance and eradicates cancer cells, so anything that decreases the function of the immune system puts the person at risk for cancer.
A patient with cancer had genetic testing done and found out that he has a P53 mutation. The nurse recognizes this as:
Tumor suppressor gene *P53 is a tumor suppressor gene mutation. The presence of a tumor suppressor gene is normal as it makes cells stop replicating when needed. It is the mutation in this “brake pedal” that leads to uncontrolled growth. Remember that two mutations are needed in order for tumor suppressor genes to malfunction.
bleeding disorder that is genetically passed on through the generations (X-linked)
hemophilia A
Is this a risk factor for cancer? Patient with a 20-year history of hepatitis C disease.
Yes, viruses like hepatitis B &C increase the risk of cancer. Hepatitis C is the leading cause of liver cancer.
A sentinel event has occurred in the hospital and a patient has received the wrong type of blood during a blood transfusion. What response does the nurse expect?
hemolytic anemia
An ICU patient has developed a bleeding disorder whereby all of their clotting factors have been used up and the patient keeps bleeding. What is this called?
Disseminated intravascular coagulation
A patient has a fatty growth on the back of her knee that hurts when she bends her knee. The patient is concerned it is cancerous. The pathology report shows it is an encapsulated collection of fatty tissue. What treatment does the nurse anticipate for this patient?
Removal of the fatty mass. *encapsulated-think benign. Also, the report says the cells are “fatty tissue”. Benign growths the cells are the same as normal cells, just growing in the wrong place or at the wrong time.
What differentiates cancer cells from normal cells?
cancer cells do not perform normal functions
How are tumor markers commonly used?
If cancer is suspected, it will be done as one of many tests to diagnose cancer.
There is a usual ratio between the hemoglobin and the hematocrit. If the patient’s hemoglobin is 10 g/dL, then what should the hematocrit be?
30 (usually a 1:3 ratio between hgb and hct)
How much time does it take for a RBC to get into circulation from the bone marrow?
1 week
Match the following screening tools with type of cancer: Cologuard
colon cancer
Patients with this type of anemia are jaundiced.
hemolytic: Patients with hemolytic anemia have jaundice because of the huge release of unconjugated bilirubin that is released into the bloodstream from the broken down red blood cells.
Why do frequent sunburns put individuals at risk for skin cancer?
Constant repair of injured skin leads to increased cell replication and the risk for errors in DNA. UV radiation is carcinogenic.
A newly diagnosed patient has a tumor that measures 1 cm in size.
What stage is this?
Typically, a 1 cm tumor is equivalent to 1 billion cells. *Most tumors are detected at minimum when it is 1 cm in size. This starts the progression stage.
What’s the most advanced grade/stage of cancer
4 (staged 1-4)
What are mutant genes that allow for autonomous cell growth? This allows for cancer cells to grow in the absence of growth promoting signals.
oncogenes
A patient is admitted to the hospital with an infection. What does the nurse expect the patient would have on their lab report?
leukocytosis