Zing NSG 124 Final Exam Prep 2026 With 50 Practice
Questions and Correct Answers/ NSG 124
Pharmacology Final Practice Exam 2026 (New)
Diurnal variation ↑ in am: - ..ANSWER...✓✓ ACTH, cortisol,
iron
Diurnal variation ↑ in pm: - ..ANSWER...✓✓ growth
hormone, PTH, TSH
Day-to-day variation - ..ANSWER...✓✓ ≥ 20% for ALT, bili,
CK, steroid hormones, triglycerides
Alcohol causes what chemistry levels to fluctuate? -
..ANSWER...✓✓ ↓ glucose; ↑ triglycerides, GGT
Posture causes what chemistry levels to fluctuate? -
..ANSWER...✓✓ ↑ albumin, cholesterol, Ca2+ when
standing
Activity ↑ in ambulatory patients: - ..ANSWER...✓✓
creatinine kinase (CK)
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Activity ↑ with exercise: - ..ANSWER...✓✓ K+, phosphate,
lactic acid, creatinine, protein, CK, AST, LD
Stress ↑ - ..ANSWER...✓✓ ↑ ACTH, cortisol,
catecholamines
Chemical rxn produces colored substance that absorbs
light of a specific wavelength. - ..ANSWER...✓✓
Spectrophotometry
Amount of light absorbed is directly proportional
to concentration of analyte. - ..ANSWER...✓✓
Spectrophotometry
Components of Spectrophotometry:
Light source (tungsten lamp for -------range, deuterium
lamp for ------), monochromator (------ ---grating),
cuvette, photodetector, readout device - ..ANSWER...✓✓
Light source (tungsten lamp for visible range, deuterium
lamp for UV), monochromator (diffraction grating), cuvette,
photodetector, readout device
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A = - ..ANSWER...✓✓ A = 2-log % T.
Measures light absorbed by ground-state atoms. -
..ANSWER...✓✓ Atomic absorption spectrophotometry
Components of AAS: Hollow -----lamp, atomizer,
flame, mixing chamber, chopper, monochromator,
detector, readout device - ..ANSWER...✓✓ Components of
AAS: Hollow cathode lamp, atomizer, flame, mixing
chamber, chopper, monochromator, detector, readout
device
Hollow cathode lamp with cathode made of -----produces
wavelength ----- for analyte. Sensitive. - ..ANSWER...✓✓
Hollow cathode lamp with cathode made of analyte
produces wavelength specific for analyte. Sensitive
Used to measure trace metals. - ..ANSWER...✓✓ AAS
Atoms absorb light of specific wavelength & emit light of
longer wavelength (lower energy) - ..ANSWER...✓✓
Fluorometry
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Components of Fluorometry
Light source (mercury or ------arc lamp), primary
monochromator, sample holder (-----cuvettes),
secondary monochromator, detector, readout device -
..ANSWER...✓✓ Components of Fluorometry
Light source (mercury or xenon arc lamp), primary
monochromator, sample holder (quartz cuvettes),
secondary monochromator, detector, readout device
Detector at 90º to light source so that only light emitted by
sample is measured. More sensitive
than colorimetry. - ..ANSWER...✓✓ Fluorometry detector
at 90 degree to light source so that only light emitted by
sample is measured
Used to measure drugs, hormones. - ..ANSWER...✓✓
Fluorometry is used to measure drugs, hormones
Chemical rxn that produces light.
Usually involves oxidation of luminol, acridinium
esters, or dioxetanes. - ..ANSWER...✓✓
Chemiluminescence