CCRN Pass Practice Exam 2024-2025|
Practice Test 1 CCRN (Pass CCRN)
Exam Latest 2024 Questions and Correct
Answers Rated A+
What is vasogenic cerebral edema? -ANSWER-Vasogenic cerebral
edema is an increase in extracellular fluid caused by a breakdown of
the blood-brain barrier with the resultant increase in vascular
permeability. This cerebral edema begins locally and becomes more
generalized. Common causes are trauma (including surgical trauma),
tumors, hemorrhage, and abscesses
What ventilator parameter indicates fluid volume excess? -ANSWER-
An A:a gradient greater than 10 mm Hg is a reflection of a diffusion
defect. Note that the process of diffusion is between A (alveolus) and
(a) arterial blood. An increase in intraalveolar fluid dilutes and
inactivates surfactant, causing alveolar collapse (decreasing vital
capacity) and decreases lung compliance. Peak inspiratory pressure
increases reflect a decrease in lung compliance
What does autonomy refer to? -ANSWER-The patient's right to make
decisions for themselves
What does beneficence mean? -ANSWER-Obligation to do good
What does nonmaleficence mean? -ANSWER-Obligation to do no
harm
What does fidelity mean? -ANSWER-the obligation to abide by
agreements and responsibilities
,What does veracity mean? -ANSWER-The obligation to tell the truth
What are Diagnosis-Related groups? -ANSWER-DRGs constitute a
prospective payment program for Medicare patients. Payment is
based on primary and secondary diagnosis, primary and secondary
procedures, age, and length of hospitalization
BNP is secreted in response to? -ANSWER-Ventricular wall stretch
What are omnious signs in a patient with status asthmaticus? -
ANSWER-A normalization or increase in the PaCO2. This patient is
still tachypneic, and if ventilation is normal, PaCO2 should be
decreased. The other ominous sign in this patient would be absence
of wheezing or rhonchi, because they would indicate that ventilation is
insufficient to cause these noises.
What problems arise from losses from the GI tract? -ANSWER-Any
loss results in hypokalemia. Vomiting results in loss of acidic contents,
whereas losses below the pylorus result is alkalitic losses leading to
metabolic acidosis. Fluid is sequestered in the intestine leading to
hypovolemia, which could cause hypovolemic shock.
Actual problems are worse than potential problems!! -ANSWER-
How can you differentiate the cause of jaundice? -ANSWER-An
increase in direct bilirubin is associated with biliary obstruction
because direct bilirubin is conjugated. An increase in indirect bilirubin
is associated with hepatic disease or excessive hemolysis because
indirect bilirubin is unconjugated
, What antihypertensive meds work best in African american patients? -
ANSWER-African-Americans do not respond well to angiotensin-
converting enzyme inhibitors (e.g., captopril [Capoten]), but they do
respond well to an angiotensin II blocker (valsartan [Diovan]). Of the
beta-blockers, labetalol works best. Of the calcium channel blockers,
diltiazem works best
Hyperkalemia can cause what? -ANSWER-Diarrhea-increases gastric
motility
Flaccid paralysis- partially depolarizes muscle cells, prevents further
depolarization
Every 1 inch increase in abdominal girth equates to how much blood
accumulation in the abdomen -ANSWER-500-1000mL
What pacing method would be used in a patient in atrial fib? -
ANSWER-VVI- you don't want to sense or pace the atria.
1st letter-paced chamber
2nd letter-chamber sensed
What is the difference between an anaphylactic and anaphylactoid
reaction? -ANSWER-Anaphylactoid reaction is clinically
indistinguishable from anaphylactic reaction but does not require
previous exposure to the antigen. Anaphylactoid reaction is not IgE
mediated, and direct activation and degranulation of mast cells are
thought to be triggered by the complement system. Anaphylactic
reaction requires previous exposure to the antigen and is IgE
mediated
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