What is the action of the thiazide diuretic?

Choice A rationale

Analyzing data collected is part of the assessment phase, not the intervention phase.

Choice B rationale

Collecting a nursing history is part of the assessment phase of the nursing process, not the intervention phase.

Choice C rationale

Determining medication effectiveness is a critical aspect of the intervention phase, as it assesses the therapeutic outcomes of the administered drugs.

Choice D rationale

Documenting the medication is a key action in the intervention phase to ensure accurate and up-to-date patient records and safe administration.

Choice E rationale

Administering the medication is a direct intervention related to drug therapy and is part of the intervention phase.

Choice A rationale

Magnesium plays a role in muscle relaxation but is not primarily responsible for muscle contraction. It helps in stabilizing the muscle membrane by acting as a natural calcium blocker. Deficiency in magnesium can lead to muscle cramps and spasms, but it does not directly cause muscle contraction and relaxation processes.

Choice B rationale

Chloride is an essential electrolyte involved in maintaining fluid balance and acid-base balance, but it does not directly influence muscle contraction and relaxation. It works in conjunction with sodium to regulate osmotic pressure and acid-base balance.

Choice C rationale

Calcium is crucial for muscle contraction. It is released from the sarcoplasmic reticulum within the muscle cells and binds to troponin, causing a conformational change that allows actin and myosin to interact and generate contraction. During relaxation, calcium ions are pumped back into the sarcoplasmic reticulum.

Choice D rationale

Hydrogen ions are involved in pH balance and acid-base regulation but do not directly affect muscle contraction and relaxation. Excess hydrogen ions (acidosis) can impair muscle function, but they are not the primary factor in muscle contraction processes.