H11 Flashcards
A nurse in the ICU is planning the care of a client who is being treated for shock. What
statement best describes the pathophysiology of this client’s health problem?
A. Blood is shunted from vital organs to peripheral areas of the body.
B. Cells lack an adequate blood supply and are deprived of oxygen and nutrients.
C. Circulating blood volume is decreased with a resulting change in the osmotic
pressure gradient.
D. Hemorrhage occurs as a result of trauma, depriving vital organs of adequate
perfusion.
ANS: B
Rationale: Shock is a life-threatening condition with a variety of underlying causes.
Shock is caused when the cells do not have an adequate blood supply and are deprived of
oxygen and nutrients. In cases of shock, blood is shunted from peripheral areas of the
body to the vital organs. Hemorrhage and decreased blood volume are associated with
some, but not all, types of shock.
In an acute care setting, the nurse is assessing an unstable client. When prioritizing
the client’s care, the nurse should recognize that the client is at risk for hypovolemic
shock in which of the following circumstances?
A. Fluid volume circulating in the blood vessels decreases.
B. There is an uncontrolled increase in cardiac output.
C. Blood pressure regulation becomes irregular.
D. The client experiences tachycardia and a bounding pulse.
ANS: A
Rationale: Hypovolemic shock is characterized by a decrease in intravascular volume.
Cardiac output is decreased, blood pressure decreases, and pulse is fast, but weak.
The emergency nurse is admitting a client experiencing a GI bleed who is believed to
be in the compensatory stage of shock. What assessment finding would be most
consistent with the early stage of compensation?
A. Increased urine output
B. Decreased heart rate
C. Hyperactive bowel sounds
D. Cool, clammy skin
ANS: D
Rationale: In the compensatory stage of shock, the body shunts blood from the organs,
such as the skin and kidneys, to the brain and heart to ensure adequate blood supply. As
a result, the client’s skin is cool and clammy. Also in this compensatory stage, blood
vessels vasoconstrict, the heart rate increases, bowel sounds are hypoactive, and the
urine output decreases.
The intensive care nurse caring for a client in shock is planning assessments and
interventions related to the client’s nutritional needs. Which physiologic process
contributes to these increased nutritional needs?
A. The use of albumin as an energy source by the body because of the need for
increased adenosine triphosphate
B. The loss of fluids due to decreased skin integrity and decreased stomach acids
due to increased parasympathetic activity
C. The release of catecholamines that creates an increase in metabolic rate and
caloric requirements
D. The increase in gastrointestinal (GI) peristalsis during shock, and the resulting
diarrhea
ANS: C
Rationale: Nutritional support is an important aspect of care for clients in shock. Clients
in shock may require 3,000 calories daily. This caloric need is directly related to the
release of catecholamines and the resulting increase in metabolic rate and caloric
requirements. Albumin is not primarily metabolized as an energy source. The special
nutritional needs of shock are not related to increased parasympathetic activity, but are
instead related to increased sympathetic activity. GI function does not increase during
shock.
A client who is in shock is receiving dopamine in addition to IV fluids. What principle
should inform the nurse’s care planning during the administration of a vasoactive drug?
A. The drug should be discontinued immediately after blood pressure increases.
B. The drug dose should be tapered down once vital signs improve.
C. The client should have arterial blood gases drawn every 10 minutes during
treatment.
D. The infusion rate should be titrated according the client’s subjective sensation of
adequate perfusion.
ANS: B
Rationale: When vasoactive medications are discontinued, they should never be stopped
abruptly because this could cause severe hemodynamic instability, perpetuating the
shock state. Subjective assessment data are secondary to objective data. Arterial blood
gases should be carefully monitored, but draws every 10 minutes are not the norm.
The nurse is caring for a client who is exhibiting signs and symptoms of hypovolemic
shock following injuries from a motor vehicle accident. In addition to normal saline, which
crystalloid fluid should the nurse prepare to administer?
A. Lactated Ringer
B. Albumin
C. Dextran
D. 3% NaCl
ANS: A
Rationale: Crystalloids are electrolyte solutions used for the treatment of hypovolemic
shock. Lactated Ringer and 0.9% sodium chloride are isotonic crystalloid fluids commonly
used to manage hypovolemic shock. Dextran and albumin are colloids, but Dextran, even
as a colloid, is not indicated for the treatment of hypovolemic shock. The 3% NaCl is a
hypertonic solution and is not isotonic.
A nurse in the intensive care unit (ICU) receives a report from the nurse in the
emergency department (ED) about a new client being admitted with a neck injury
received while diving into a lake. The ED nurse reports that the client’s blood pressure is
85/54, heart rate is 53 beats per minute, and skin is warm and dry. What does the ICU
nurse recognize that the client is probably experiencing?
A. Anaphylactic shock
B. Neurogenic shock
C. Septic shock
D. Hypovolemic shock
ANS: B
Rationale: Neurogenic shock can be caused by spinal cord injury. The client will present
with a low blood pressure; bradycardia; and warm, dry skin due to the loss of
sympathetic muscle tone and increased parasympathetic stimulation. Anaphylactic shock
is caused by an identifiable offending agent, such as a bee sting. Septic shock is caused
by bacteremia in the blood and presents with a tachycardia. Hypovolemic shock presents
with tachycardia and a probable source of blood loss.
The nurse is transferring a client who is in the progressive stage of shock into the
intensive care unit from the medical unit. Nursing management of the client should focus
on which intervention?
A. Reviewing the cause of shock and prioritizing the client’s psychosocial needs
B. Assessing and understanding shock and the significant changes in assessment
data to guide the plan of care
C. Giving the prescribed treatment, but shifting focus to providing family time as
the client is unlikely to survive
D. Promoting the client’s coping skills in an effort to better deal with the physiologic
changes accompanying shock
ANS: B
Rationale: Nursing care of clients in the progressive stage of shock requires expertise in
assessing and understanding shock and the significance of changes in assessment data.
Early interventions are essential to the survival of clients in shock; thus, suspecting that
a client may be in shock and reporting subtle changes in assessment are imperative.
Psychosocial needs, such as coping, are important considerations, but they are not
prioritized over physiologic health.
The acute care nurse is providing care for an adult client who is in hypovolemic shock.
The nurse recognizes that antidiuretic hormone (ADH) plays a significant role in this
health problem. What assessment finding will the nurse likely observe related to the role
of antidiuretic hormone during hypovolemic shock?
A. Increased hunger
B. Decreased thirst
C. Decreased urinary output
D. Increased capillary perfusion
ANS: C
Rationale: During hypovolemic shock, a state of hypernatremia occurs. Hypernatremia
stimulates the release of ADH by the pituitary gland. ADH causes the kidneys to further
retain water in an effort to raise blood volume and blood pressure. In a hypovolemic state
the body shifts blood away from anything that is not a vital organ, so hunger is not an
issue; thirst is increased as the body tries to increase fluid volume; and capillary
profusion decreases as the body shunts blood away from the periphery and to the vital
organs.
The nurse is caring for a client in the ICU who has been diagnosed with multiple organ
dysfunction syndrome (MODS). The nurse’s plan of care should include what
intervention?
A. Encouraging the family to stay hopeful and educating them to the fact that, in
nearly all cases, the prognosis is good
B. Encouraging the family to leave the hospital and to take time for themselves as
acute care of MODS clients may last for several months
C. Promoting communication with the client and family along with addressing
end-of-life issues
D. Discussing organ donation on a number of different occasions to allow the family
time to adjust to the idea
ANS: C
Rationale: Promoting communication with the client and family is a critical role of the
nurse with a client in progressive shock. It is also important that the health care team
address end-of-life decisions to ensure that supportive therapies are congruent with the
client’s wishes. Many cases of MODS result in death, and the life expectancy of clients
with MODS is usually measured in hours and possibly days, but not in months. Organ
donation should be offered as an option on one occasion, and then allow the family time
to discuss and return to the health care providers with an answer following the death of
the client.
When caring for a client in shock, one of the major nursing goals is to reduce the risk
that the client will develop complications of shock. How can the nurse best achieve this
goal?
A. Provide a detailed diagnosis and plan of care in order to promote the client’s and
family’s coping.
B. Keep the health care provider updated with the most accurate information
because in cases of shock the nurse often cannot provide relevant interventions.
C. Monitor for significant changes and evaluate client outcomes on a scheduled
basis focusing on blood pressure and skin temperature.
D. Understand the underlying mechanisms of shock, recognize the subtle and more
obvious signs, and then provide rapid assessment.
ANS: D
Rationale: Shock is a life-threatening condition with a variety of underlying causes. It is
critical that the nurse apply the nursing process as the guide for care. Shock is
unpredictable and rapidly changing so the nurse must understand the underlying
mechanisms of shock. The nurse must also be able to recognize the subtle as well as
more obvious signs and then provide rapid assessment and response to provide the client
with the best chance for recovery. Coping skills are important, but not the ultimate
priority. Keeping the health care provider updated with the most accurate information is
important, but the nurse is in the best position to provide rapid assessment and
response, which gives the client the best chance for survival. Monitoring for significant
changes is critical, and evaluating client outcomes is always a part of the nursing process,
but the subtle signs and symptoms of shock are as important as the more obvious signs,
such as blood pressure and skin temperature. Assessment must lead to diagnosis and
interventions.
The nurse is caring for a client whose worsening infection places the client at high risk
for shock. Which assessment finding would the nurse consider a potential sign of shock?
A. Elevated systolic blood pressure
B. Elevated mean arterial pressure (MAP)
C. Shallow, rapid respirations
D. Bradycardia
ANS: C
Rationale: A symptom of shock is shallow, rapid respirations. Systolic blood pressure
drops in shock, and MAP is less than 65 mm Hg. Bradycardia occurs in neurogenic shock;
other states of shock have tachycardia as a symptom. Infection can lead to septic shock.
The nurse is caring for a client in intensive care unit whose condition is deteriorating.
The nurse receives orders to initiate an infusion of dopamine. Which assessments and
interventions should the nurse prioritize?
A. Frequent monitoring of vital signs, monitoring the central line site, and providing
accurate drug titration
B. Reviewing medications, performing a focused cardiovascular assessment, and
providing client education
C. Reviewing the laboratory findings, monitoring urine output, and assessing for
peripheral edema
D. Routine monitoring of vital signs, monitoring the peripheral intravenous site,
and providing early discharge instructions
ANS: A
Rationale: Dopamine is a sympathomimetic agent that has varying vasoactive effects
depending on the dosage. When vasoactive medications are given, vital signs must be
monitored frequently (at least every 15 minutes until stable, or more often if indicated),
not “routinely.” Vasoactive medications should be given through a central, not
peripheral, venous line because infiltration and extravasation of some vasoactive
medications can cause tissue necrosis and sloughing. High doses can cause
vasoconstriction, which increases afterload and thus increases cardiac workload. Because
this effect is undesirable in clients with cardiogenic shock, dopamine doses must be
carefully titrated. Reviewing medications and laboratory findings, monitoring urine
output, assessing for peripheral edema, performing a focused cardiovascular
assessment, and providing client education are important nursing tasks, but they are not
specific to the administration of IV vasoactive drugs.
The nurse in a rural nursing facility will be receiving a client in hypovolemic shock due
to a massive postpartum hemorrhage after giving birth at home. Which principle should
guide the nurse’s administration of intravenous fluid?
A. 5% albumin is preferred because it is inexpensive and is always readily
available.
B. Dextran should be given because it increases intravascular volume and
counteracts coagulopathy.
C. Whatever fluid is most readily available in the clinic should be given, due to the
nature of the emergency.
D. Lactated Ringer solution is ideal because it increases volume, buffers acidosis,
and is the best choice for clients with liver failure.
ANS: C
Rationale: The best fluid to treat shock remains controversial. In emergencies, the “best”
fluid is often the fluid that is readily available. Fluid resuscitation should be initiated early
in shock to maximize intravascular volume. Both crystalloids and colloids can be
administered to restore intravascular volume. There is no consensus regarding whether
crystalloids or colloids, such as dextran and albumin, should be used; however, with
crystalloids, more fluid is necessary to restore intravascular volume. Albumin is very
expensive and is a blood product so it is not always readily available for use. Dextran
does increase intravascular volume, but it increases the risk for coagulopathy. Lactated
Ringer is a good solution choice because it increases volume and buffers acidosis, but it
should not be used in clients with liver failure because the liver is unable to convert
lactate to bicarbonate. This client does not have liver disease.
The nurse is caring for a client who is receiving large volumes of crystalloid fluid to
treat hypovolemic shock. In light of this intervention, for what sign or symptom should
the nurse monitor?
A. Hypothermia
B. Bradycardia
C. Coffee ground emesis
D. Pain
ANS: A
Rationale: Temperature should be monitored closely to ensure that rapid fluid
resuscitation does not precipitate hypothermia. IV fluids may need to be warmed during
the administration of large volumes. The nurse should monitor the client for
cardiovascular overload and pulmonary edema when large volumes of IV solution are
given. Coffee ground emesis is an indication of a GI bleed, not shock. Pain is related to
cardiogenic shock.