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CCRN Test 01: Core Body Systems & Critical Care

CCRN Test 01: Advanced Nursing Concepts

This exam reviews electrolyte balance, blood gas values, and heart pacing.

Acidosis Check: Metabolic acidosis occurs when the pH is below 7.35 and the bicarbonate is below 22.
Normal Ratios: A healthy BUN to creatinine ratio stays under 20:1. Higher numbers often mean dehydration.
Drug Safety: Mannitol is an osmotic diuretic. It is mostly used to lower brain swelling, not just for basic fluid loss.
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Q:1What is the correct order of the four layers of the gut wall from the outside (superficial) to the inside?
Q:2Which drug type is used most often to treat agitation from delirium in the ICU?
1. Antipsychotics
2. Benzodiazepines
3. Antidepressants
Q:3What is a normal BUN-to-creatinine ratio?
Q:4Which of these is an osmotic diuretic?
1. Mannitol
2. Furosemide
3. Ethacrynic acid
Q:5Which two chemicals come from blood vessel linings to squeeze the vessel shut during an injury?
Q:6Which condition comes from brain damage that affects movement and posture?
Q:7Damage to the zona glomerulosa in the adrenal gland affects which hormone?
Q:8Which white blood cell releases histamine and heparin during inflammation?
Q:9Which list shows the correct number of bones in the adult spine?
Q:10Which isotonic fluid is best for a patient with low blood volume?
Q:11In the four phases of breathing, what happens during Phase III (Diffusion)?
Q:12What happens in dipsogenic diabetes insipidus?
Q:13How is a patient with tularemia (a bacterial disease) usually treated?
Q:14Which lab results show metabolic acidosis?
Q:15Which of these is NOT one of the four main acid-base problems?
Q:16What is the most common type of hole in the wall between the heart's upper chambers (ASD)?
Q:17Which of these drugs open up blood vessels directly?
1. Nitroglycerin
2. Furosemide
3. Nitroprusside
Q:18In the Synergy Model, which of these is NOT considered a clinical outcome of care?
Q:19The SA node uses two types of cells. What are they?
Q:20Which organ does NOT help the GI tract digest food?

Test 01 Key Study Points

1. GI Layers The gut has four layers. From the outside in, they are Serosa, Muscularis, Submucosa, and Mucosa.
2. Adrenal Cortex The Zona Glomerulosa makes Aldosterone. This hormone manages salt and water in the body.
3. SA Node Cells The heart's natural pacemaker uses P-cells to start the spark and T-cells to pass it along.
4. Isotonic Fluids 0.9% Normal Saline is the standard fluid for volume loss because it does not make cells shrink or swell.

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