Short answer: yes. As @Momof5 says, keep carbs sub-20 grams per day and you’ll be fine.
Longer answer: Urine test strips measure acetoacetate (mostly) that you excrete unused. The concentration in urine can change due to several variables. If you drink a lot of water (recommended on keto) and pee a lot, the concentration will be lower. If you don’t drink enough water and/or don’t pee frequently, the concentration will be higher. Synthesis of ketones by the liver varies a lot moment to moment. That’s why measuring ketones only tells you that you’ve got them. Good. Not how much you’ve actually got nor how efficiently they’re being utilized. Hope this helps.