Nokea
Isotonic normal saline (0.9%) solution is LEAST indicated in which one of the following conditions?
- A. Vomiting
- B. Hypercalcemia
- C. Body wide sodium depletion (e.g. DKA)
- D. Volume overload (e.g. liver disease)
Correct Answer: D
Rationale: Normal saline worsens volume overload in conditions like liver disease due to sodium retention.
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In the liver insulin facilitates:
- A. Lypolisis
- B. Inhibit lipolysis
- C. Enhance lipoprotein lipase activity and support hydrolysis of triglycerides from lipoproteins
- D. Decrease production of glycerol phosphate and esterification of fatty acids
Correct Answer: B
Rationale: Insulin inhibits lipolysis in the liver, reducing fatty acid release.
Substrate concentration & velocity curve indicates
- A. Michelis-Mentons equation
- B. Inverse relation
- C. Zero order kinetics
- D. All of the above
Correct Answer: C
Rationale: Substrate concentration vs. velocity in zero-order kinetics shows saturation, unlike first-order (Michaelis-Menten).
The nurse is talking with a group of nursing students who are doing clinical hours on the unit. A student asks if all intramuscular (IM) drugs are absorbed the same. What factor would the floor nurse tell the students to affect absorption of the IM administration of drugs?
- A. Perfusion of blood to the subcutaneous tissue
- B. Integrity of the mucous membranes
- C. Environmental temperature
- D. Blood flow to the gastrointestinal tract
Correct Answer: C
Rationale: A cold environmental temperature can cause blood vessels to vasoconstrict and decreases absorption or in a hot environment vasodilate and increase absorption of IM medications. Blood flow to the subcutaneous tissues interferes with subcutaneous injection and blood flow to the gastrointestinal (GI) tract causes alterations in absorption for oral medications. The condition of mucous membranes can interfere with sublingual (under the tongue) and buccal (in the cheek) administration of drugs.
Beta-blockers decrease triglyceride levels and increase levels of HDL cholesterol.
- A. TRUE
- B. FALSE
Correct Answer: B
Rationale: Beta-blockers typically increase triglycerides and decrease HDL cholesterol, opposite to the statement.
There is enough preliminary evidence to recommend that children with autism receive which supplemental nutrient?
- A. Vitamin B1 (thiamine)
- B. Vitamin B2 (riboflavin)
- C. Calcium
- D. Omega-3 fatty acids
Correct Answer: D
Rationale: Preliminary evidence suggests omega-3 fatty acids may benefit children with autism.