NCLEX-RN EXAM Questions with 100%
Verified Answers
What are the normal ranges for RBC?
What can increase levels
What happens to levels during pregnancy? - CORRECT
ANSWER-Males: 4.7-6.1 million
Female: 4.2-5.4 million
Exercise and high altitudes can cause an increase levels
pregnancy usually lower values drug therapy can alter
values
Never draw a specimen from an arm with an infusing IV.
What are the normal ranges for PLATELETS?
What may increase values?
What may decrease values?
What drugs decrease values? - CORRECT ANSWERBoth
Genders: 150000-400000
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Living at high altitudes, exercising strenuously or taking
oral contraceptives may increase values
decreased values may be caused by hemorrhage, DIC,
reduced production of platelets, infections, use of
prosthetic heart valves, and drugs.
Drugs that decrease platelets: acetaminophen, aspirin,
chemotherapy, H2 blockers, INH, Levaquin,
streptomycin, sulfonamides, thiazide diuretics.
What are the normal ranges for K+? What should you
keep in mind when getting a specimen? - CORRECT
ANSWER-3.5-5 is normal range for potassium
Exercise of the forearm with tourniquet in place may
cause an increased level. Hemolysis of specimen can
result in a falsely elevated value
What are the normal ranges for Na+? What should you
consider when collecting a specimen? - CORRECT
ANSWER-136-145 is a normal sodium range
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Do Not collect from an arm with an infusing IV solution
What are the normal ranges for Ca+?
What type of drug can increase calcium levels?
What are two tests with positive results that are associated
with hypocalcemia?
How do you preform the two tests? - CORRECT
ANSWER-
9-10.5 for adults. slightly lower in the elder
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Use of thiazide diuretics can cause increased levels of
calcium
Positive Chvostek and Trousseau tests are associated with
hypocalcemia.
• Chvostek sign: contraction of ipsilateral facial
muscles when the facial nerve is tapped just in front of the
ear.
• Trousseau sign: carpopedal spasm elicited by
inflating a sphygmomanometer above systolic BP for 3
minutes.
What are the normal ranges for Mg+?
What may high magnesium levels indicate?
What may low magnesium levels indicate? - CORRECT
ANSWER-1.7-2.2