EXAMS 1 Flashcards
During a discussion on cellular components and their function, a student asked the instructor the purpose of messenger RNA (mRNA). Of the following, which is the most accurate answer?
Performs an active role of protein synthesis, where mRNA molecules direct the assembly of proteins on ribosomes to the cytoplasm.
The nurse is providing care for a client with a diagnosis of cirrhosis, and she notes that the client’s sclerae are jaundiced. The nurse recalls jaundice is a pigment that can accumulate in which part of the cell?
Cytoplasm
A 14-year-old female has been experiencing severe internal cramps in the region
of the pelvis along with weight loss. She has been admitted with rectal bleeding.
The physician has diagnosed her with inflammatory bowel disease (IBD). She asks
the nurse what causes this disease. Which pathophysiologic basis will guide the
nurse’s response to this adolescent?
Endoplasmic reticulum stress in the gastrointestinal system
A professor is teaching a group of students about the role of mitochondria within
the cell. Which statement is true of mitochondria
They are the site of adenosine triphosphate (ATP) production.
A client has been diagnosed with a neurodegenerative disease called multiple sclerosis (MS). The physician explains to the client that this disease may be caused by dysregulated apoptosis. Later that day, the client asks the nurse what this
means. The nurse should reply:
Dysregulated apoptosis has caused an excessive rate of programmed cell death along the neuro-pathways.
A client experiencing immotile cilia syndrome (Kartagener syndrome) should be frequently assessed by the nurse for which priority complication?
bronchiectasis due to interferences with clearance of inhaled bacteria along the
respiratory tract.
The nurse is explaining the workings of selective serotonin uptake inhibitors (SSRIs) to a client with a diagnosis of depression. Within the teaching, the nurse mentions that in the nervous system, the transmission of information by neurotransmitters is:
synaptic signaling.
The nurse is teaching a group of colleagues about the cell division cycle as background to caring for oncology clients. Which statement is true of the cell cycle?
The two broad phases of the cell cycle are mitosis and synthesis.
A 62-year-old male collapsed while unloading a truck of heavy sacks of feed for his cattle. When he arrived in the emergency department, blood gases revealed a slightly acidic blood sample. The nurse caring for this client is not surprised with this result based on which pathophysiologic rationale?
The skeletal muscles are producing large amounts of lactic acid and release it into the bloodstream during heavy work/exercise.
The health caregiver is explaining the rationale for administering a hypotonic intravenous solution (lower concentration of solutes in its surroundings) to a client. Which mechanism of membrane transport most likely underlies this action?
Osmosis
A nurse is teaching a client with a recent diagnosis of diabetes about the roles that glucose and insulin play in the disease pathology and the fact that glucose must enter the body cell in order to provide energy for the client. The nurse knows that which process allows glucose to enter body cells?
Facilitated diffusion
A student asks the instructor about the origins of different tissues and their cellular origins during the process of development. Which statement by the instructor best describes the process of cell differentiation?
“A fertilized ovum undergoes a series of divisions, yielding many different cell types.”
A nurse is providing care for a client with a diagnosis of Crohn’s disease. The nurse recognizes the fact that the disease involves the inflammation and irritation of the intestinal lining. Which type of tissue is most likely involved in the client’s pathology?
Simple columnar epithelium
During a crime scene investigation, the coroner confirm that rigor mortis has set in. This helps to confirm an approximate time of death. The forensic nurse can explain this process (rigor mortis) to a group of students based on the fact that:
at death, the body is unable to complete the actin/myosin cycle and release the coupling between the myosin and actin, creating a state of muscular contraction.
The home care nurse is making a home visit to a 51 years female client with
a longstanding diagnosis of multiple sclerosis. The nurse knows that the muscle wasting and weakness associated with the disease process is ultimately manifested as a failure of what normal process in muscle tissue?
Thick myosin and thin actin filaments sliding over each other.
A caregiver is working with a client who is having poorly controlled pain due to shingles. The associated pain travels to the client’s nervous system via:
afferent neurons.
The nurse is administering a calcium channel blocked to a client with a cardiac dysrhythmia. For what side effect should the nurse assess?
Constipation
A client has been told she has elevated levels of low-density lipoproteins (LDL). The client says, “I have always followed a low-cholesterol diet, so how could it be elevated?” How should the nurse respond?
LDL needs to be taken up into the intracellular space and this process does not work well in some people, causing LDL elevations in the blood.
The nurse is caring for a client whose potassium level is 5.9 mEq/L (5.9 mmol/L). Which treatment should the nurse be prepared to minister?
Medication to promote the movement of potassium into the intracellular space
A nurse is teaching clients about the benefits of smoking cessation. What should the nurse include as the most accurate reason for the development of a
chronic “smoker’s cough”?
Damage to cilia in the respiratory tract make it necessary to cough to clear the airway.
The nurse is caring for an 8-year-old client who has cystic fibrosis. What aspect of client care should the nurse prioritize?
Airway clearance
A community health care worker is explaining to a group of factory workers the importance of wearing gloves when working with strong chemicals such as turpentine and paint thinner. Which characteristics of cell membranes underlies the nurse’s teaching?
Impermeability of cell membranes to all but lipid-soluble substances
The parents of a child newly diagnosed with Tay-Sachs disease asks what signs and symptoms they will see if the disease is progressing which response(s) by the nurse is most accurate? Select all that apply.
- loss of motor skills like turning over
- vision loss
When discussing the function of the cell membrane during pathophysiology class, which statement(s) by the faculty is accurate? Select all that apply.
- helps determine what can and cannot enter and exit cells
- contains receptors for hormones and neurotransmitters
- allow ions to cross the membrane during electrical signaling in cells
Of the following situations, which one would be an example of a maladaptive
cellular change?
44-year-old male with a 60 pack/year smoking history who was diagnosed with a
histological grade-3 lung cancer
A client is experiencing muscle atrophy following 2 weeks in traction after a
motor vehicle accident. Which factor has most likely contributed to the atrophy of
the client’s muscle cells?
A reduction of skeletal muscle use secondary to the traction treatment
The nurse is teaching new nursing assistants on the unit about the phenomenon
of muscle hypertrophy. Which client on the unit is most likely to experience muscle
hypertrophy? A client with:
hypertension, obesity, and decreased activity tolerance.
Which client is at high risk for developing dilated cardiomyopathy?
44-year-old noncompliant female who forgets to take her hypertensive
medications
Which student statement demonstrates a sound understanding of the cellular
processes of hypertrophy and hyperplasia?
“I know that cells like neurons have little capacity for hyperplastic growth.”
A home health nurse is making a visit to a family with an 8-month-old infant with
severe motor deterioration. The physician has diagnosed the infant with Tay-Sachs
disease. The parents are asking the nurse why this happened. The nurse will base
her answer knowing the root cause of Tay-Sachs is:
an enzyme defect causing abnormal lipid accumulation in the brain.
A 68-year-old male client with aortic stenosis secondary to calcification of the
aortic valve is receiving care. Which statement best captures an aspect of this
client’s condition?
The client has possibly undergone damage as a result of calcification following
cellular injury.
A nurse in the emergency department admits a male client who has experienced
severe frostbite to his hands and toes after becoming lost on a ski hill. The nurse
recognizes that which phenomena has contributed to his tissue damage?
Decreased blood flow has induced hypoxia.
As part of a first aid class, a health care instructor is teaching a group of
industrial workers about how electrical injuries can cause cell damage. Which
statement made by one of the workers indicates that further teaching is necessary?
“The greater the skin resistance, the greater the amount of deep and systemic
damage a victim is likely to incur.”
A client who has a diagnosis of lung cancer is scheduled to begin radiation
treatment. The nurse knows that which statement about potential risks of radiation
is most accurate?
“Some clients experience longer-term irritation of skin adjacent to the treatment
site.”
A young client has just been diagnosed with xeroderma pigmentosum. When
teaching this family about this disease, the nurse should emphasize which teaching
points? Select all that apply.
- Wear long sleeves, long pants, gloves, a hat, sunglasses with side shields, and sunscreen while outdoors.
- The best time to allow the child to play outside is in the evening hours after the
sun goes down.
A 7-year-old boy is admitted to the hospital with a suspected diagnosis of lead
toxicity. Which assessment finding is most congruent with the client’s diagnosis?
Hemoglobin 9.9 g/dL (99 g/L)
The nurse is teaching a group of new mothers about postpartum nutrition,
when one of the clients states that she was told to avoid eating fish too often due
to the risk of mercury poisoning. Which response by the nurse most accurately
addresses the clients concerns?
“There are some modest risks, but they are only associated with some long-
living fish like tuna.”
A nurse is teaching a group of older adults about the value of including foods
containing antioxidants in their diet. Which statement best captures the rationale
underlying the nurse’s advice?
Antioxidants inhibit the actions of reactive oxygen species.
During a myocardial infarction (MI), a client with a 97% occlusion of the left
descending artery develops ventricular dysrhythmias due to the amount of ischemia
occurring in the myocardium. While providing education about MI’s, which
statement is most accurate to share with this client?
Treatment needs to be sought immediately so that the buildup of lactic acid is
limited and cellular changes can be reversed.
Which statement most accurately conveys an aspect of cell injury due to
impaired calcium homeostasis?
Injured cells tend to accumulate calcium.
The nurse is providing care for a client with a diagnosis of amyotrophic lateral
sclerosis (ALS). The nurse recognizes that which mechanism is suspected to play a
role in the cellular death associated with ALS?
Apoptosis
Which enzyme listed below is responsible for the ability of cancer cells to resist
aging and contributes to cellular immortality that is so characteristic of this disease
process?
Telomerase
The nurse is caring for a client with arterial insufficiency of the left leg with
gangrenous wounds on the second and third toes. What characteristics of the
wounds should the nurse evaluate as expected? Select all that apply.
- A clear demarcation between the healthy and affected tissue
- Diminished pulse strength
- Atrophy to the affected toes
- Darkened appearance of affected tissue
The nurse is planning care for a group of clients. Which clients should the nurse
prioritize as “at risk” for hypercalcemia and advocate for monitoring calcium
levels? Select all that apply.
- A client with prolonged immobility
- A client with hypophosphatemia
- A client who has breast cancer with bone metastasis
- A nurse is triaging clients at a disaster site. Local facilities have different
specialized units. To what facility should the nurse send a client who has sustained
an electrical injury to his left thigh?
Burn unit
Parents bring their 18-month-old child to the emergency room exhibiting
behavior changes and vomiting. They are concerned the child ingested something in the older home they are renovating. Laboratory findings indicate low hemoglobin
and elevated creatinine. Which diagnostic test should the nurse advocate for first?
Erythrocyte protoporphyrin (EP) level
The nurse is caring for a 45-year-old client undergoing radiotherapy of the
mediastinal nodes due to lymphoma. Which interventions should the nurse
prioritize? Select all that apply.
- Assessing for fatigue
- Avoiding invasive procedures
- Performing respiratory assessment
A worker in a warehouse is trying to have children but think he or she has
handled “mercury” while cleaning equipment. Which statement by the occupational
nurse is most appropriate at this time?
Most mercury toxicity involves central nervous system changes.
The health care provider is discussing the treatment protocol using ionizing
radiation to treat the client’s cancer. The client asks, “What side effects can occur
with this treatment?” Which response(s) is accurate? Select all that apply.
- Low blood counts
- Excessive diarrhea
A 23-year-old man has received a recent diagnosis of appendicitis. The nurse
providing care for the man is explaining that the inflammation of his appendix is
playing a role in his body’s fight against the underlying infectious process. Which
teaching points should the nurse eliminate from client education?
“Inflammation helps your body to produce the right antibodies to fight the
infection.”
A client presented to the emergency department of the hospital with a swollen,
reddened, painful leg wound and has been diagnosed with methicillin-resistant
Staphylococcus aureus (MRSA) cellulitis. The client’s physician has ordered a
complete blood count and white cell differential. Which blood component would the
physician most likely anticipate to be elevated?
Neutrophils
A 16-year-old girl has broken her arm while snowboarding and is shocked at the
amount of swelling at the injury site. Which statement best explains the
physiologic rationale for her swelling?
Loss of plasma proteins causes an increase in interstitial osmotic pressure.
Which phenomena best accounts for the increased presence of leukocytes at the
site of inflammation?
Existing leukocytes stick to the epithelial cells and move along blood vessel
walls.
When explaining the final stages of the inflammatory response to pathogens, the
nurse should include which educational topics?
How the body can kill the pathogen by generating toxic oxygen and nitrogen
products, producing such things as nitric oxide and hydrogen peroxide
A deficiency in which of these would result in an inhibition of the inflammatory
response?
Histamine
When educating a client with a wound that is not healing, the nurse should stress
which dietary modifications to ward off some of the negative manifestations that
can occur with inflammation?
Increase your intake of oily fish and fish oil so that you will increase absorption
of omega-3 polyunsaturated fatty acids.
Tumor necrosis factor-α and IL-1 are major cytokines that mediate inflammation.
If the client is developing a systemic response to an infection, the nurse will likely
assess which clinical manifestations? Select all that apply.
- Elevated temperature
- Tachycardia
- Anorexia
A 63-year-old woman has begun a diet that purports to minimize the quantity
and effects of free radicals in her body. Which physiologic process could best
underlie her care provider’s teaching about her new diet?
Free radicals increase cytokine expression and adhesion molecule levels,
resulting in increased inflammation.
A nurse is changing the wound dressing on a coccyx-region pressure injury of
an immobilized client. The existing dressing is saturated with both watery, clear
discharge and foul, grayish-colored liquid. Which entry in the client’s chart most
accurately documents these findings?
“Large amounts of suppurative and serous exudates noted.”
Which aspect of a client’s site of inflammation would help the care provider rule
out chronic inflammation?
Increased neutrophils
A 24-year-old woman presents with fever and painful, swollen cervical lymph
nodes. Her blood work indicates neutrophilia with a shift to the left. She most likely
has:
A severe bacterial infection
Which client would have a very poor response related to tissue regeneration of
his or her injured area?
54-year-old male who had a massive MI 4 days ago and came to the ED today
for treatment.
A hospital client has a large, superficial wound on her elbow that was the result
of shearing action when she was moved up in her bed. The client’s husband mentions that the wound looks infected and irritated since it is completely red. Which response by the nurse would be inappropriate?
“A thin sheet of blood clotting is actually desirable and not a sign that your wife’s
wound is infected.”
Which process would most likely be considered an anomaly during the cellular
phase of inflammation?
Vasoconstriction
A client who is recovering from burn injuries is discussing his prognosis with a
physician. Which teaching point about expectations for healing should the physician
offer?
“You may find that the scar is a bit smaller than the area of the wound.”
Which client is most likely to have impairments to the wound healing process?
A client with:
poorly controlled blood sugars with small blood vessel disease.
A 79-year-old female resident of an assisted living facility receives care from a
community nurse on a regular basis for treatment of a chronic venous leg ulcer.
Which factor would the nurse be most justified in ruling out as a contributing factor
to the client’s impaired wound healing?
Decreased antibody levels
An 80-year-old client has a stage 3 decubitus ulcer on the left ischial tuberosity
which has not shown much improvement despite optimal local wound treatment.
What other interventions should the nurse recommend to promote wound healing?
Select all that apply.
- A review of the client’s medications
- Placing the client on an alternating pressure mattress
- Nutritional supplements
A client with a surgical wound has developed excessive granulation tissue
extending above the wound edges. Which action should the nurse take?
Ask the health care provider about surgical options to remove the excess tissue
and promote wound healing.
The nurse is caring for a client with a diabetic foot ulcer who has difficulty
adhering to dietary restrictions. This has resulted in elevated blood glucose levels.
What information is most important for the nurse to share with the client?
Elevations in blood glucose make it more difficult for your white blood cells to
fight the infection.
The nurse is caring for a group of postoperative clients. Who should the nurse
prioritize as having the greatest risk for infection at the surgical site?
A 45-year-old with external fixation of a fractured tibia
A parent brings a 12-year-old to the emergency room with multiple bite wounds
to the arms and hands from a stray cat. Which interventions should the nurse be
prepared to apply? Select all that apply.
- A review of the client’s immunization record
- Rabies prophylaxis
- Irrigation of the wounds
- Administration of prophylactic antibiotics
A client with a large decubitus ulcer asks the nurse, “How it is possible for a
wound this deep to ever fully heal?” What is the nurse’s best response?
With adequate resources, the body is capable of regenerating tissue and blood
flow to the area over time.
A student arrives at the health clinic anxious and afraid. The student found an
enlarged lymph node in the groin area that is extremely painful to touch and
“knows” it is cancer. What information should the health care provider relay to this
student about lymphadenitis?
Not all swollen lymph nodes are due to cancer. It could be caused by an infection
in the genital region.
The nurse knows that which statement listed below relative to a client with
malignant melanoma treated with alpha interferon (IFN-α) is accurate? Alpha
interferon (IFN-α):
plays an important role in the modulation of the inflammatory response.
The nurse knows which statement listed below is accurate regarding the
functions and nature of cytokines relative to a variety of pathologies?
“A particular cytokine can have varied effects on different systems, a fact which
limits their therapeutic use.”
The nurse knows a drug in a category identified as a colony-stimulating factor
(CSF) helps:
to stimulate bone marrow to produce large numbers of mature cells such as
platelets and erythrocytes.
Which individual situation listed below best exemplifies the processes of innate
immunity?
A child who has experienced heat and swelling of his skinned knuckle
The nurse knows which component is needed for long-lasting immunity in a
client with a diagnosis of sepsis without the causative agent identified?
Lymphocytes
A client has been identified as having an excess of macrophage inhibitory factor,
causing the client to have inhibited movement and activity of macrophages. Which
process listed below would the health care team member expect to remain
unaffected?
Specificity and memory of the immune response
A client who has a diagnosis of an autoimmune disease asks his nurse why it is
that their immune system does not attack all of the cells that make up his body.
Which of the following aspects of pathogen recognition in the innate immune
system listed below would underlie the nurse’s response?
Pattern recognition receptors (PRRs) ensure cells are correctly identified.
Which phenomenon would be least likely to result in activation of the
complement system?
Activation of toll-like receptors (TLRs) on complement proteins.
A nurse is providing care for a client who is immunocompromised following
chemotherapy. The nurse knows that which characterization of the adaptive
immune system is responsible for the client’s disruption in normal immune
function?
Epitopes on antigens are recognized by immunoglobulin receptors following
presentation by accessory cells.
The nurse knows that the cells primarily programmed to remove the invading
organisms and remember the antigen to respond rapidly during the next exposure
are:
T-lymphocytes and B-lymphocytes.
A 53-year-old female hospital client has received a kidney transplant following
renal failure secondary to hypertension. The teaching prior to transplant made her
aware that she would need to take anti-rejection drugs for the rest of her life.
Which aspect of the immune system underlies this necessity?
MHC molecules will never develop in the cells of the donor organ and effector
cells will be continually stimulated.
A client has been inhaling viruses periodically while on a cross-country flight.
Which situation listed below would most likely result in the stimulation of the
client’s T lymphocytes and adaptive immune system?
Recognition of a foreign peptide bound to a self-major histocompatibility complex
(MHC) molecule
Three days ago, a mother delivered her full-term infant who had been identified
as having an in utero infection. The infant is receiving antibiotic and phototherapy,
and the mother is breast-feeding. Which types of immunoglobulins could most
reasonably be expected to predominate in the infant’s immune system?
IgG, IgA, IgM
A middle school student is scheduled to receive booster immunizations and the
father asks the nurse why the booster is necessary. What characteristic of the
adaptive immune system listed below would provide the rationale for the nurse’s
response?
A secondary response causes a sharp rise in antibody levels.
A student states, “It seems like helper T cells do a lot more than just ‘help’ the
cellular immunity process”. Which response listed below best conveys an aspect of
the role of CD4+ helper T cells in immunity?
“Helper T cells play a major role in stimulating and regulating the whole
process.”
A newly diagnosed HIV-positive adolescent has blood work drawn that includes
a CD8+ T-cell count. The nurse knows that which functions of CD8+ T cells listed
below will assist the adolescent’s immune system in fighting off the viral attack?
Select all that apply.
- Release of destructive enzymes
- Trigger intracellular programmed death
A 10 year old child with strep throat asks the nurse, “Why are there large
bumps [lymph nodes] on my neck when my throat gets sore?” The nurse replies
that lymph nodes:
help your body fight off infections by allowing special cells [lymphocytes and
macrophages] to move through the lymph chain and engulf and destroy germs.
Which situation can best be characterized as an example of passive immunity?
A 6-week-old infant receives antibodies from his mother’s breast milk.
The nurse knows high incidences of infectious illnesses among the older adults
who reside in a long-term care facility are most likely to have diminished immune
capacity because of:
decreased numbers and responsiveness of T lymphocytes.
A community health nurse is conducting an education session with a group of
pregnant women. One of the clients states, “I am not feeling right about getting a
flu vaccine while pregnant.” What is the nurse’s best response?
“By getting vaccinated, you reduce the risk of you and your baby getting
influenza.”
A 60-year-old male client with an acute viral infection is receiving interferon
therapy. The nurse is teaching the client about the ways interferon differs from
other anti-infective therapies. What point should the nurse include?
“Interferon stimulates the activity of natural killer cells that attack viruses.”
A client has been diagnosed with rheumatoid arthritis and asks the nurse what
causes this condition. What is the nurse’s best response?
Your immune system is attacking your own tissues as if they were harmful
organisms.
A nurse is conducting an immunization clinic when a 14-year-old client asks,
“Does this vaccine make me immune to the disease?” What is the nurse’s best
response?
“The vaccine imitates a disease without causing illness, resulting in the creation
of antibodies to the disease.”
The parent of a child with allergies has been told the child will have a blood test
done for immunoglobulin measurement. The nurse should tell the parent that which
immunoglobulin will be tested?
IgE
The nurse is preparing a client for bone marrow transplant. The client asks,
“How long will it take for the new marrow to make the blood cells?” What is the
nurse’s best response?
Although it can vary, we will administer medication that will stimulate the bone
marrow to create the cells.
While teaching about HIV/AIDS to a group of high school seniors, the school
health nurse will begin by explaining the basic facts. Which information will this
likely include?
HIV is different from other viruses since it is a retrovirus that selectively attacks
the body’s immune cells.
As part of her prenatal education, a 29-year-old woman who is pregnant with her first child is receiving teaching from her primary care provider. Which statement by the woman reflects an accurate understanding of HIV transmission?
“It’s discouraging to know that my breast milk can pass on HIV to my baby.”
A potential donor is angry at the personal nature of the questions about HIV risk
factors that he is required to answer at a blood collection center, and states that
simple blood testing should suffice. How can the nurse at the center best respond?
“There’s a period shortly after someone is infected with HIV when blood tests
might still be negative.”
A 19 year-old intravenous drug user was exposed to the HIV virus 3 weeks ago
and is experiencing a rapid proliferation in viral load. Which statement best
captures an aspect of the process of HIV replication that underlies this proliferation?
HIV is able to change its RNA into DNA to allow for replication by CD4+ cells.
Which client would be considered to be in the latent period of HIV infection?
33-year-old heroin drug abuser who has numerous enlarged lymph nodes in his
axilla and cervical neck region for the past 4 months.
A person who has been diagnosed with HIV infection 12 years ago and still has a
CD4+ cell count of 800 cells/μL and a low viral load is considered to be in which
Long-term nonprogressor
A 39-year-old female with HIV has been characterized as a typical progressor by
her care team, and is experiencing an increase in her manifestations and complaints as her CD4+ count declines. Which health problem would her care team
most likely attribute to a cause other than her HIV?
Her decreased bone density and recent fractures
A 48-year-old man who has been HIV positive for 6 years has just learned that
he has been diagnosed with Kaposi sarcoma (KS). Which fact most accurately
conveys an aspect of his diagnosis?
He is likely to have lesions on his skin, mouth, or GI tract.
When counseling a male client with suspected HIV, the nurse informs him that if
the enzyme-linked immunosorbent assay (ELISA) comes back positive, then:
a second test known as the Western blot assay will be ordered to confirm
positive HIV status.
After years of going to different physicians with vague symptoms, a 55-year-old
client with a history of Hodgkin lymphoma has been diagnosed with a secondary
immunodeficiency syndrome. The client asks the nurse what this means. The nurse
knows that secondary immunodeficiency disorders may occur if which background
information is available? Select all that apply.
- Usually develop later in life
- May be a result of chemotherapy being used to treat a cancer
- Can occur in clients taking corticosteroids daily.
A 2-year-old girl has had repeated ear and upper respiratory infections since
she was born. A pediatrician has determined a diagnosis of transient
hypogammaglobulinemia of infancy. What is the physiologic origin of the child’s
recurrent infections?
The child’s immune system is unable to synthesize adequate immunoglobulin on its own.
A nurse is providing care for a 17-year-old boy who has experienced recurrent
sinus and chest infections throughout his life and presently has enlarged tonsils and
lymph nodes. Blood work indicated normal levels of B cells and free immunoglobins
but a lack of differentiation into normal plasma cells. The boy is currently receiving
intravenous immunoglobulin (IVIg) therapy. What is the boy’s most likely
diagnosis?
Common variable immunodeficiency
An 8-week-old boy has been recently diagnosed with a severe combined
immunodeficiency (SCID). His parents have performed a significant amount of
research on the Internet and have brought a large amount of material to discuss
with their care provider. Which statement best reflects an accurate understanding
of their son’s health situation?
“Our son likely has a deficiency of B-lymphocytes and can’t produce antibodies.”
A 1-year-old child who has experienced low platelet counts and bacterial
susceptibility has been admitted to a pediatric medical unit of a hospital for
treatment of Wiskott-Aldrich syndrome. The nurse who has admitted the child to
the unit would anticipate which short-term and longer-term treatment plans?
Treatment of eczema; management of bleeding; bone marrow transplant
A 4-year-old boy presents with a chronic cough and swollen lymph nodes. His
records show that he has been given antibiotics several times in the past year with
limited success, most recently for a liver abscess. He also has a recurring fungal
skin condition. Which diagnosis is most likely the cause of this child’s
manifestations?
Chronic granulomatous disease
When explaining to parents what is occurring when their child has an acute
bronchial asthma attack, the nurse will emphasize that which mediator is primarily
responsible for the bronchial constriction?
Histamine
A 40-year-old woman who experiences severe seasonal allergies has been
referred by her family physician to an allergist for weekly allergy injections. The
woman is confused as to why repeated exposure to substances that set off her
allergies would ultimately benefit her. Which phenomenon best captures the
rationale for allergy desensitization therapy?
Injections of allergens simulate production of IgG, combining with the antigens
to prevent activation of IgE antibodies.
Following a spider bite she received while camping, a 20-year-old female
presented to the emergency department with rash, edema, and fever and was
subsequently diagnosed with serum sickness. Which statement best conveys the
physiologic rationale for the broad systemic effects of this event?
Antigen-antibody complexes have been deposited in a variety of locations
throughout the body.
A female dental assistant has developed signs and symptoms of a latex
sensitivity, and is undergoing allergy testing as well as blood work. Which
component of the assistant’s blood work would most likely be the focus of her
health care provider’s analysis?
Serum IgE immunoassays
While undergoing a kidney transplant from a non-family member, the client’s
transplanted kidney has just had the arterial clamps removed. The OR staff notices
that the organ is turning purple with no urine output. When explaining to the family
why they had to remove the donor kidney, the nurse will anticipate that the
surgeon would likely include which statement?
Hyperacute rejection occurs because antibodies against HLA antigens are
deposited in vessels, causing necrosis.
After several months on a waiting list, a 44-year-old male received a liver
transplant 5 days ago. In the last 36 hours, he has developed a rash beginning on
his palms and soles, along with abdominal pain and nausea. It has been determined
by his care team that the immune response that is causing his symptoms originates
not with his own compromised immune components but with those introduced with
his new organ. This man’s most likely medical diagnosis is:
Graft-versus-host-disease (GVHD)
While volunteering in an HIV clinic in a big city, the nurse notices a new mom
and her 6-month old child in the waiting room. Upon assessing the infant for
possible HIV infection, the nurse will be assessing for which clinical manifestations
of HIV infection? Select all that apply.
- Weighing him to determine if he is gaining 1.5 to 2 pounds/month.
- Lack the coordination to play with toys/stuffed animals.
- History of repeated episodes of bacterial pneumonia and ear infections.
- Listlessness and poor eye contact.
Which client is most likely to be a candidate for a thymus transplant as the
treatment of choice to reconstitute T-cell immunity?
A 7-year-old boy with diagnosis of thymic aplasia whose blood work indicates
absence of T cells
Which clients are at increased risk for developing secondary
hypogammaglobulinemia, a secondary humoral immunodeficiency? Select all that
apply.
- client with burns covering more than 45% of the body
- malnourished child who only drinks cow’s milk
- client witha a history of seizures controlled by an antiepileptic
A health care provider has prescribed blood products for a trauma client with a
history of selective immunoglobulin A deficiency (SIGAD) who is going into
hypovolemic shock. Which blood product is most appropriate for the nurse to
infuse?
specially washed erythrocytes from normal donor
Staphylococcus aureus commonly found in the skin, nares, and other body sites
of clients without any signs and symptoms of infection is known as which condition?
Bacterial colonization
Which statement is an accurate descriptor of the role of viruses in human
infections?
Some viruses are capable of transforming normal host cells into malignant cells.
Which type of pneumonia is best characterized by an infective agent that
produces sputum samples with a peptidoglycan cell wall, expresses endotoxins,
replicates readily in broth and on agar, grows in clusters, has pili, and does not
stain when exposed to crystal violet?
Bacterial
The nurse will most likely assess which clinical manifestation in a client
diagnosed with Creutzfeldt-Jakob disease?
Change in behavior and memory, loss of coordination leading to encephalopathy
The spirochete Leptospira is primarily transmitted to farmers by:
direct contact with infected animals.